Xojo provides a RAD (Rapid Application Development) environment because it protects the...

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Xojo provides a RAD (Rapid Application Development) environment because it protects the user from the Operating System. Xojo has many helpful functions, and declares add to this existing toolbox.

Tapping into the Operating System directly with Declares opens up almost all of the options available for a program - but you are also out of the protection of the safe IDE (Integrated Development Environment) of Xojo. With the ability to change anything with the program or operating system, improper code also provides the ability of a crash. This is written for intermediate and advanced programmers of Xojo.

All examples have been converted to 32-bit, 64-bit, ANSI, and Unicode versions.

This book provides many examples that are converted from C++ functions to Xojo. Although there are many Visual Basic examples that can be converted, vb declare example are becoming outdated, have different parameters, or contain misinformation. For these reasons converting from C++ to Xojo is a long-lasting alternative and which this book provides many descriptions, reasons, references, and working examples for Xojo declares.

There are 31 chapters and contains over 1050 pages with over 150 example programs.

Note: This book covers Xojo API 2. If you’re interested in Xojo API 1, you’ll want the earlier book, Implement API1 Declares With Xojo on Windows (XDL-0007).

Updates:

New to Version 4.7 – September 2024

• Added GetFileSize method in Example 4-12
• Added RTL_OSVERSIONINFOW structure in Example 2-12
• Added RtlGetVersion Declare in Example 2-12
• Added RTL_OSVERSIONINFOEXW structure in Example 2-13
• Added RtlGetVersionEX Declare in Example 2-13

New to Version 4.6 - March 2024

• Added SetDllDirectoryW for OS specific DLL folder search (Example 35-1)
• Added SetDllDirectoryA for OS specific DLL folder search (Example 35-1)
• Added CryptProtectData to encrypt Data (Example 36-1)
• Added CryptUnprotectData to decrypt Data (Example 36-1)
• Added Data_Blob structure
• Added Cryptprotect_Promptstruct structure

New to Version 4.5 - May 2023

This version has a focus on the Windows Audio and Video API’s.

• Added update for Windows 11 OS
• Included more options on mciSendString rewrite function and Declare
• Updated Example 16-1 with new mciSendString function - Record Sound
• Updated Example 16-2 with new mciSendString function - Play Sound Files
• Updated Example 16-3 with new mciSendString function - Extra Audio Data
• Added dynamic audio volume control, Example 16-4
• Updated Example 16-4 with new mciSendString function - Audio volume
• Created Example 16-5 with mciSendString function - Left-Right volume
• Created Example 16-6 with mciSendString function - Left-Right mute
• Created Example 16-7 with mciSendString function - audio playback speed
• Created a new chapter for videos with MCIString function - Chapter 34
• Updated Example 34-1 to API2 controls
• Updated Example 34-1 to updated mciSendString function declare for open, play, pause, resume, stop, and close commands
• Updated Example 34-1 to API2 DesktopApplication. DesktopMenuBar, DesktopTextField, DesktopLabel, and DesktopWindow for videos.
• Added Example 34-2 which changes movie screen size and position.
• Added Example 34-3 for extra video data, including Frame Rate.
• Added Example 34-4 to dynamically change the volume of a video during runtime.
• Added Example 34-5 to dynamically change right-left volume of a video at runtime
• Added Example 34-6 to mute left-right sound channels while playing a video.
• Added Example 34-7 which changes video and audio playback speed.

Version 4.4: This version has a focus on the Windows Clipboard API’s. This is a start of the many declares and there is much more content that can be created.

New to Version 4.4 — February 2022

• Updated clipboard constant CFDIBVS to CFDIBV5
• Added CF_HTML Clipboard Format Type
• Added CF_RICHTEXT Clipboard Format Type
• Added GetClipboardformat to retrieve clipboard data (Example 29-3)
• Added EmptyClipboard example (Example 29-4)
• Added Generic Cut, Copy, and Paste (Example 29-5)
• Added Load a BMP picture file to the clipboard (Example 29-6)
• View clipboard picture data (Example 29-7)
• Added tagBITMAPINFOHEADER structure
• Added CF_DIB picture from clipboard to display (Example 29-8)
• Added CountClipboardFormats Structure
• Added EnumClipboardFormats Structure
• Added GetClipboardFormatName for both ANSI and Unicode
• Added the ability to retrieve clipboard formats (Example 29-9)

Version 4.2: Fixed example 15-1 where it wouldn’t compile on 64-bit machines and updated for Xojo API 2.

New to Version 4.3 — July 2021

• Explained Stucture Union in Chapter 33
• Add SendInput for a keyboard Virtual Key (Example 33-1)
• Add SendInput for a Mouse key (Example 33-2)
• Added Virtual Key Code constants (Appendix CR)
• Added MouseFlag Code constants (Appendix CS)
• Added tagINPUT structure description and MB equivalent for 32-bit and 64-bit compatibility
• Added SendInput function for completeness and 32-bit and 64-bit compatibility

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The book is written as a guide and reference to Xojo programmers who program Desktop Applications in Windows and Mac. There are no plugins, dynamic link libraries (dll), COM, or Active...

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The book is written as a guide and reference to Xojo programmers who program Desktop Applications in Windows and Mac. There are no plugins, dynamic link libraries (dll), COM, or Active X parts to add.

There are more than 20 chapters with over 400 pages with over 80 example programs.

Examples include opening RowSets, finding data, sorting, updating data, counting records, printing a report, deleting records, creating new records, creating reports, and more. Many screenshots have been added to show the results of the code with an index to help find topics quickly.

*This uses Xojo API2

All examples have been created with native Xojo code with Xojo 2020 r2.1. There is an older book for AP1 (Xojo 2014 – SQLite).

Specific updates to the book are to numerous to mention, and here is a list of general changes with January 2021 (2.0 Edition) that has major updates which are:

• Converted all examples to API 2 and updated code
• Datatype NULL is now called BLOB
• Update a large number of screen grabs with newer DB Browser for SQLite
• Make a new Example 3-2, create a sqlite database with Xojo code
• Make a new Example 3-3, create a sqlite database with a table and ID field
• OpenDialog is deprecated, using OpenFileDialog instead
• Value is deprecated, using Text instead
• MsgBox is deprecated, using MessageDialog.Show.
• Field is deprecated, using Column instead
• Field is deprecated, using RowSet instead
• SQLSelect is deprecated, using SelectSQL instead
• RecordSet is deprecated, using RowSet instead
• ErrorMessage is deprecated, using DatabaseException instead
• Replaced Dim (API1) to Var (API2)
• EOF is deprecated, using For Each x as DatabaseRow in RS instead and/or AfterLastRow
• LastIndex is deprecated, using LastAddedRowIndex instead
• HasHeading is deprecated, using HasHeader instead
• Cell is deprecated, CellValueAt is used instead
• DatabaseRecord is deprecated, DatabaseRow is used instead
• InsertRecord is deprecated, AddRow is used instead
• Delete is deprecated, using Remove instead
• CopyFileTo is deprecated, using CopyTo instead
• MaxHorizontalResolution is deprectated, using MaximumHorizontalResolution instead
• MaxVerticalResolution is deprecated, using MaximumVerticalResolution instead
• PageSetupDialog is deprecated, using ShowPageSetupDiaolog instead
• Date is deprecated, DateTime is used instead
• SaveAsDialog is deprecated, using SaveFileDialog instead
• CreateDatabaseFile is deprecated, using CreateDatabase instead
• SQLExecute is deprecated, using ExecuteSQL instead
• SleepCurrentThread is deprecated, using Thread.SleepCurrent instead
• Commit is deprecated, using CommitTransaction instead
• Rollback is deprecated, using RollbackTransaction instead

More than twenty chapters and over 400 pages with greater than 80 examples that both show and describe the code. This book is in PDF format with example chapter folders containing Xojo source code and running examples.

Eugene Dakin is the author of many computer programming reference materials and has many years experience creating technical programs.

The Table of Contents can be previewed at the author’s website at https://scispec.ca/index.php/books

ISBN: 978-1-927924-29-7

Updates to Version 2.6 — Oct 2023

• This is a continuation of the many updates for API2 controls with SQLite.
• Changed Example 13-1 from CreateDatabase to Connect to database
• Example 13-2 is updated to API2 with the following code and control updates: DesktopApplication, binary project, DesktopButton, DesktopButton Pressed Event, DesktopMenuBar, DesktopLabel, connect - not create database.
• Updated API2 code and controls in Example 13-3 which include: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopButton Pressed Event, DesktopMenuBar, DesktopLabel,
• Code and controls were updated on Example 13-4 and the following was upgraded: Binary project, DesktopWindow, DesktopApplication, DesktopButton, DesktopLabel, DesktopButton Pressed Event, and DesktopMenuBar.
• Example 13-5 has been further updated to API2 controls and code: DesktopApplication, DesktopWindow, binary project, DesktopButton, DesktopLabel, DesktopButton Pressed event, and DesktopMenuBar.
• API2 code and controls have been updated in Example 14-1: DesktopApplication, DesktopWindow, binary project, DesktopButton, DesktopButton Pressed event, Desktoplabel, and DesktopMenuBar.
• Example 14-2 is updated to API2 with the following code and control updates: DesktopApplication, binary project, DesktopButton, DesktopButton Pressed Event, DesktopMenuBar, DesktopLabel, and DesktopMenuBar.
• Updating the following controls and code on Example 15-1: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopButton Pressed event, DesktopLabels, and DesktopMenuBar.
• Example 15-2 has code and controls updated to the latest version of API2 in Xojo 2023 R2: Binary Project, DesktopApplication, DesktopWindow, DesktopMenuBar, DesktopButton, DesktopButton Pressed event, DesktopLabel, and DesktopProgressBar.
• Code and controls have been updated on Example 15-3: DesktopApplication, Binary Project, DesktopWindow, DesktopMenuBar, DesktopButton, DesktopButton Pressed and Opening Events, DesktopLabel, DesktopProgressBar.
• Updated controls and code in Example 16-1 which include the following: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopButton Pressed Event, DesktopMenuBar, DesktopLabel, and DesktopTextBox.
• Controls and code updating occurred to Example 16-2 with the following info: binary project, DesktopApplication, DesktopWindow, DesktopButton, Desktop Pressed event, DesktopLabel, DesktopMenuBar, DesktopListbox, DesktopListbox CellTextAt, and DesktopTextField.
• Example 17-1 has been updated to API2 with the following changes: Binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopMenuBar, DesktopButton Pressed event, DesktopListbox, and DesktopListbox CellTextAt.
• Updated code and controls in Example 17-2 to the following: DesktopApplication, DesktopWindow, DesktopButton, binary project, DesktopMenuBar, DesktopButton Pressed Event, DesktopListbox, and DesktopListbox CellTextAt.
• Code and controls were updated in Example 17-3 to: Binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopMenuBar, DesktopButton Pressed event, DesktopListBox, and DesktopListBox CellTextAt.
• Example 17-4 has been updated with code and controls which include the following: DesktopApplication, binary project, DesktopWindow, DesktopButton, DesktopButton Pressed Event, DesktopMenuBar, DesktopListbox, and DesktopListBox CellTextAt command.
• API2 updates with control and code have been updated as follows To Example 17-5: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopMenuBar, DesktopButton Pressed Event, DesktopListbox, and DesktopListBox CellTextAt command.
• More controls in Example 17-6 have been updated to the following: DesktopApplication, binary project, DesktopWindow, DesktopMenuBar, DesktopButton, DesktopButton Pressed event, DesktopListbox, and DesktopListbox CellTextAt.
• Example 18-1 controls and code has been updated: DesktopApplication, DesktopWindow, binary project, DesktopMenuBar, DesktopButton, DesktopButton Pressed event, and DesktopLabel.
• Upated code and controls to the project Example 19-1 with the following: DesktopApplication, DesktopWindow, Binary Project, DesktopMenuBar, DesktopButton, DesktopButton Pressed and Opening Events, DesktopListbox, DesktopListBox to CellTextAt, DesktopLabel, and DesktopTextField.
• Example 19-2 has been updated to the latest API2 code and controls with the following modifications: DesktopApplication, binary project, DesktopWindow, DesktopMenuBar, DesktopButton, DesktopButton Opening and Pressed event, DesktopListbox, DesktopListbox CellTextAt, DesktopLabel, DesktopTextField, and String.ReplaceAll.
• Updated code and controls to Example 20-1 which include: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopButton Pressed Event, DestopMenuBar, DesktopListbox, and DesktopListbox CellTextAt.
• Controls and code have been updated to the latest version of 2023 R2 API2: DesktopApplication, binary project, DesktopWindow, DesktopMenuBar, DesktopButton, DesktopButton Pressed Event, DesktopListbox, and DesktopListBox CellTextAt.
• Example 21-1 API2 has been updated to the following controls and code: DesktopApplicaition, binary project, DesktopWindow, DesktopButton, DesktopButton Opening and Pressed event, DesktopMenuBar, DesktopListbox, DesktopListbox CellTextAt, and DesktopLabel.
• Updated controls and code in Example 22-1 to the following: DesktopApplication, binary project, DesktopWindow, DesktopButton, DesktopListbox, DesktopButton Pressed event, DesktopMenuBar, and DesktopListbox CellTextAt.
• Code and controls are updated in Example 22-2: DesktopApplication, DesktopWindow, binary project, DesktopMenuBar, DesktopButton, DesktopButton Opening and Pressed event, DesktopListbox, DesktopListBox CellTextAt, and DesktopLabel.
• Example 22-3 has been updated with the following API code and controls: binary project, DesktopWindow, DesktopApplication, DesktopButton, DesktopButton Pressed Event, DesktopMenuBar, DesktopLabel, and SQLitePreparedStatement ExecuteSQL command.
• Updated Example 22-4 to the latest Xojo 2023 Release 2 API2 code and controls: DesktopApplication, DesktopWindow, binary project, DesktopMenuBar, DesktopButton, DesktopButton Pressed event and Opening Event, DesktopListbox, DesktopListbox CellTextAt, DesktopLabel, and DesktopMenuBar.
• API2 code and controls have been updated in Example 25-1: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopButton Opening and Pressed events, DesktopMenuBar, DesktopListbox, DesktopListbox CellTextAt commands, DesktopGroupBox, DesktopTextField controls, and DesktopLabel controls.
• Updated API2 controls and code in Example 26-1: DesktopApplication, DesktopWindow, Binary Project, DesktopMenuBar, DesktopButton, DesktopButton Pressed Event, DesktopLabel, and removed unused variable.
• Example 27-1 was updated to API2 with the following edits to controls and code: converted many parameters to doubles, and added Pragma unused for parameters.

Updates to Version 2.5 – September 2023

• Focus on latest updates to API2 version with 2023 R2
• Updated Desktop, BevelButton, DesktopApplication, DesktopWindow, Action to Pressed Event, DesktopLabel, changed Menubar to API2 (Example 1-1)
• Update DesktopApplication, DesktopWindow, DesktopButton, Binary Project, Button Pressed Event, MenuBar, DesktopLabel to API2 (Example3-1)
• Update DesktopApplication, DesktopWindow, DesktopButton, Binary Project, DesktopButton Pressed Event, MenuBar, DesktopLabel, to API2 (Example 3-2)
• Example 3-3, updated DesktopApplication, DesktopWindow, DesktopButton, Project file binary, MenuBar, DesktopButton, Desktopbutton Pressed event, and DesktopLabel.
• Example 4-1, changed to newer controls, DesktopApplication, DesktopWindow, DesktopButton, DesktopTextField, changed to new binary project format, DesktopButton to Pressed action event, Menubar, and DesktopLabel. Updated code in example.
• Changed following controls and new API2 compatible items, DesktopApplication, DesktopWindow, DesktopButton, DesktopTextField, DesktopLabel, new binary project, New Desktopbutton Pressed event, book code, and Menubar in Example 4-2.
• Example 4-3 updated items: DesktopApplication, DesktopWindow, DesktopButton, DesktopLabel, DesktopComboBox, new binary project format, new button Pressed event, MenuBar, and the code in book for this example.
• Modified the following controls and code: DesktopApplication, DesktopWindow, DesktopButton, binary project, DesktopButton Pressed Event, MenuBar, DesktopListBox, CellTextAt, changed code in book with Example 4-4.
• Changed code and controls in Example 4-5 to: DesktopApplication, DesktopWindow, DesktopButton, new binary project format, DesktopButton Pressed event, MenuBar, DesktopListBox, CellTextAt, and updated example book code for Example 4-5.
• Update Example 4-6 with further updates to API2 controls and code, DesktopApplication, DesktopWindow, DesktopButton, Binary Project, Pressed DesktopButton event, MenuBar, DesktopListbox, Code CellTextAt in book code.
• Changed and updated to the following API2 code and control changes: DesktopApplication, DesktopWindow, DesktopButton, binary project, Desktopbutton Pressed event, MenuBar, DesktopListbox, CellTextAt, and book code for Example 4-7.
• Example 4-8 updates to code and desktop controls are as follows: DesktopApplication, DesktopWindow, DesktopButton, binary project update, DesktopButton Pressed event, MenuBar, DesktopListbox, CellTextAt, DesktopTextField, and DesktopLabel.
• Updated Example 4-9 with the following: DesktopApplication, DesktopWindow, DesktopButton, update binary project, DesktopButton Pressed event, MenuBar, DesktopListbox, DesktopTextfield, Code CellTextAt, and DesktopLabel.
• The following items were updated: DesktopApplication, DesktopWindow, DesktopButton, DesktopListbox, DesktopTextbox, DesktopLabel, binary project updates, Implement Pressed event, CellTextAt, code, and MenuBar for Example 4-10.
• Example 4-11 has been updated with: DesktopApplication, DesktopWindow, DesktopButton, DesktopListbox, DesktopTextfield, Update binary project, Pressed event for DesktopButton, MenuBar, and CellTextAt.
• Updated Example 5-1 with the following modifications: DesktopApplication, DesktopWindow, DesktopButton, Pressed event, Opening Event, Closing Event, binary project format, MenuBar, DesktopLabel, DesktopListbox, and CellTextAt.
• Updated the following deprecated items: DesktopApplication, DesktopWindow, DesktopButton, DesktopListbox, DesktopLabel, update binary project, Pressed event, Opening event, MenuBar, and CellTextAt for Example 5-2.
• Example 5-3 has been updated to more API2 code: DesktopApplication, DesktopWindow, DesktopButton, DesktopListbox, DesktopLabel, updated binary project, DesktopButton Pressed and Opening event, MenuBar, DesktopListbox CellTextAt, and DesktopTextField.
• Updated the following code and controls in Example 5-3: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopListbox, DesktopLabels, DesktopButton Pressed and Opening Event, DesktopListbox CellTextAt, MenuBar, DesktopTextfields, and DesktopGroupBox.
• Example 5-4 has updates which include: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopListbox, DesktopLabels, DesktopButton Pressed and Opening Event, DesktopListbox CellTextAt, MenuBar, DesktopTextfields, and DesktopGroupBox.
• The following code and controls were updated: DesktopApplication, DesktopWindow, DesktopButton, binary project, Pressed and Opening Event, MenuBar, DesktopListbox, CellTextAt, DesktopTextField, and DesktopLabel for Example 5-5.
• Example 6-1 has the following updates: updated binary project, DesktopApplication, DesktopWindow, MenuBar, DesktopButton, Pressed and Opening event, DesktopListbox, CellTextAt, and DesktopLabel.
• Code and controls for Example 6-2 has been updated with the following items: xojo binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopListbox, DesktopGroupBox, DesktopButton Pressed and Opening event, MenuBar, DesktopListbox, CellTextAt, DesktopLabels, and DesktopTextFields.
• Further APII2 updates were created in Example 6-3 which contain the following code and controls: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopListbox, DesktopGroupBox, DesktopLabel, DesktopTextField, DesktopButton Opening and Pressed events, MenuBar, and DesktopListbox CellTextAt code.
• Example 7-1 has had updates to code and controls which are: DesktopApplication, binary project, and MenuBar major modifications.
• Updates to code and controls for Example 8-1 include the following: DesktopApplication, DesktopWindow, binary project, DesktopListbox, DesktopButton, DesktopButton Pressed event, DesktopListbox CellTextAt code, and MenuBar.
• Control updates to Example 8-2 with controls have occurred in this project: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopLabel, DesktopButton Pressed event, and MenuBar.
• Example 9-1 project had the following updates: DesktopApplication, binary project, DesktopWindow, MenuBar, DesktopLabel, DesktopButton, and DesktopButton Pressed event.
• Updated to API 2 with the latest code and controls, binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopLabel, DesktopButton Pressed event, and Menubar.
• Upgraded Example 9-3 to API 2 code with the following modifications: DesktopWindow, DesktopApplication, binary project, MenuBar, DesktopLabel, and DesktopButton.
• Example 9-4 updated with the following controls: DesktopApplication, MenuBar, binary project, DesktopWindow, DesktopLabel, DesktopButton, and Pressed event for DesktopPushbutton.
• Controls were updated as DesktopApplication, binary project, DesktopWindow, DesktopLabel, MenuBar, DesktopButton, DesktopButton Pressed Event for Example 9-5.
• Updated the following controls in Example 10-1 : DesktopApplication, binary project, MenuBar, DesktopWindow, DesktopButton, DesktopListbox, DesktopListbox CelltextAt command, DesktopButton Opening and Pressed events.
• Example 10-2 updates include: binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopTextField, DesktopLabel, DesktopListbox, MenuBar, DesktopListbox CellTextAt command, DesktopButton Opening and Pressed events.
• Formatting numbers in Example 11-1 example was update with the following code and controls, DesktopApplication, binary project, DesktopWindow, ManuBar, DesktopButton, DesktopButton Pressed event, DesktopListbox, DesktopListbox CellTextAt command.
• API2 code has been updated in Example 12-1 with the following code and controls: DesktopApplication, binary project, DesktopWindow, DesktopButton, DesktopButton Pressed event, MenuBar, PrinterSetup ShowPrinterDialog code, ReportLabel, and update code to new API2 code.
• Example 12-2 is updated to API2, updating DesktopApplication, DesktopWindow, DesktopButton, binary project, DesktopButton with Pressed method, MenuBar, OpenFileDialog, and MessageDialog Show command.
• New report created in Example 12-3 with updates, DesktopApplication, binary project, DesktopWindow, DesktopButton, MenuBar, and rewrote printing code.
• Example 12-4 has updates to: DesktopApplication, binary project, DesktopWindow, DesktopButton, DesktopButton Pressed Event, and DesktopMenuBar.
• API2 has been updated along with code and contains edits to the following controls and code: DesktopApplication, binary project, DesktopWindow, DesktopButton, DesktopButton Pressed event, DesktopMenuBar for Example 12-5.
• Updated code to API2 with Example 12-6, and to the following controls: Binary project, DesktopApplication, DesktopWindow, DesktopButton, DesktopButton Pressed event, MenuBar,
• Example 12-7 code to more API2 compatible controls, such as: binary project, DesktopApplication, DesktopButton, DesktopWindow, DesktopButton Pressed Event, DesktopMenuBar, and updated code in the Pressed event.
• The following updates to code and controls to API2 have occurd in Example 12-8: DesktopApplication, binary project, DesktopWindow, DesktopButton, DesktopButton Pressed event, DesktopMenuBar, and updated printing code.
• Updated code and controls on Example 12-9 which are as follows: DesktopApplication, binary project format, DesktopWindow, DesktopButton, DesktopButton Pressed Event, DesktopMenuBar, and updated printing code in the Pressed event.
• Example 12-10 has more API2 code added, and the list of changes are: binary project, DesktopApplication, DesktopWindow, DesktopMenuBar, DesktopButton, DesktopButton Pressed Event, and ran into crashes. Code is included although there are bugs. Note: Multiple crashes have occurred with workarounds – this code is for testing and not to be used in a final project.
• Updated code and controls in Example 12-11 which include the following: Binary project, DesktopApplication, DesktopMenuBar, DesktopWindow, DesktopButton, and DesktopButton Pressed event. Although the landscape command worked on Printersetup, it does not work on the final print – code is for testing and not to be used in a final project.
• Due to a large number of errors in creating reports with Desktop Reports in API2, most report examples have not been updated in the book until creating reports have stabilized.
• Example 13-1 has been updated to API2 with the following modifications: DesktopApplication, binary project, DesktopWindow, DesktopButton, DesktopButton Pressed event, DesktopMenuBar, and DesktopLabel.

Updates to Version 2.4 — August 2023

• Added Example to place SQLite data in a Listbox (Example 30-1)
• Added an Example to rearrange the Listbox data (Example 30-2)
• Added Example to save Listbox Data to an SQLite Database (Example 30-3)

Updates to Version 2.3 — Jan 2023

• Provided description information on an SQLite one-to-many relational database (Beginning Chapter 28)
• How to add database tables that can be linked in a relational database(Example 28-1)
• Add data to a table that can be linked in the future in a relational database (Example 28-2)
• Add linked columnar data to an original table in a relational database (Example 28-3)
• An example on how to retrieve linked data from two tables in a relational database using INNER JOIN (Example 28-4)
• How to update data in a relational database (Example 28-5)
• How to query multiple tables in a relational database using WHERE AND (Example 28-6)

Updates to Version (2.2 — October 2022):

• Performed updates to many of the examples (40+ examples) which prevent crashing when cancelling the use of FileDialog use in programs
• Added the reference to view Xojo SQLite encrypted databases with SQLite Manager
• Added information on the description of Write Ahead Logging.
• Changed the executable of some example programs to the default MyApplication or My Application
• Fixed issue with the user pressing cancel in Example 25-1
• Added BOM issue example with Example 26-1
• Added Save picture to database example (Example 27-1)
• Added load picture from database – Example 27-2

Updates to Version 2.1 – Feb 2021

• Grammatical changes
• Formatting changes
• Repopulated Example 8-1
• Performed many updates from CStr to ToString formatting
• Changed information on DPI for MaximumHorizontalResolution and MaximumVerticalResolution
• Remove the legacy Call function when no return value is needed for a method, on many examples
• Changed OLEException (Windows Only) to DatabaseException
• Write Ahead Logging is added in Example 25-2.
• Changed IntegerValue.ToString to StringValue
• Changed DoubleValue.ToString to StringValue
• Removed extra brackets from dlg.ShowModal
• Updated Example 15-3 to include a Table and three columns to allow 100 additions. Special thanks to Enric Herrera.

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There are 17 Chapters with more than 380 pages and more than 150 example programs. The book is a live document and will likely have updates in the future.

This ebook is a pdf formatted document and all examples include Xojo 2021 r1.1 API2 code.

Note: The single-purchase (Not 365) Excel 2019 version will need to be purchased and installed on your Windows computer for this to work.

ISBN: 978-1-927924-30-3

New to Version 4.3 - July 2023 - Excel 2019

• Add Hyperlink to a cell
• Add a hyperlink to a shape anchor
• Add Text to a Hyperlink
• Add Screen Tip information to a hyperlink
• Deleting a hyperlink in a cell
• Deleting all hyperlinks
• Add a Hyperlink to a Picture
• Start an Email for Outlook using FollowHyperlink
• Updated book link to https://www.xdevlibrary.com/

New to Version 4.2 - February 2023 – Excel 2019 and Xojo API2

• Add an object picture
• Retrieve image name
• Rename image
• Retrieve picture dimensions
• Delete an image
• Make an image invisible
• Loop through pictures
• Link pictures to cells
• Image placement and locking
• Increment picture rotation
• Total picture rotation
• Centre image to cell
• Image horizontally flipped
• Image vertically flipped
• Resize an Image
• Stretch an image with cells
• Crop an Image
• Change Z-Order
• Set Background Picture
• Save Picture

New to Version 4.1 – January 2022 – Excel 2019

• Fixed grammatical errors
• Added example code that contains parameters and return values
• Added Chapter 17 on Arrays
• Added simple Xojo array with Excel data (Example17-1)
• Added fast array reading with Excel (Example 17-2)
• Added Excel status (Example 2-9)
• Added Tab Delimited File saving (Example 5-16)

New to Version 4.0 - June 2021 – Excel 2019 and Xojo API2

• Over 700 changes to Example code. General categories of changes are listed below
• Update code to Microsoft Excel 2019
• Update all code to API 2
• Uses version Xojo 2021 r1.1
• Updated all project IDE minimum versions
• Update plugin installation instructions
• Fixed numerous grammatical errors
• Changed API MsgBox to API2 MessageDialog.Show (Example 2-1)
• Added filename suffix -API2 to signify change in program
• Updated Example2-2 with multiple changes from API1 to API2
• Changed API1 AbsolutePath to API2 NativePath function
• Converted example xls files to xlsx
• Changed GetFolderItem to FolderItem.Constructor
• Changed Date to DateTime (Example 3-14)(Example 7-4)
• Changed Listbox ListIndex to SelectedRowIndex (Example 3-25)
• Changed Listbox ListCount to RowCount
• Changed Listbox Cell to CellValueAt
• Changed Listbox Heading to HeaderAt
• Changed StrComp to String.Compare (Example 3-26)
• Removed extra and unused variables in Examples
• Example 4-10 (4-12) updated to API 2 code, except for Date – no TotalSeconds option available
• Updated to Microsoft Access Database Engine 2010 Redistributable in Example 11-1
• Updated API1 RecordSet to API2 Rowset
• Updated API1 ErrorMessage to API2 DatabaseException
• Updated API1 Field to API2 Column
• Update API1 Value to API2 StringValue
• Removed API1 MoveNext with API2 For Each Row as DatabaseRow in rs
• Updated API1 Microseconds to API2 System.Microseconds
• Updated API1 SetText to API2 Text
• Updated API1 Split to API2 String.Split
• Updated API1 Ubound to API2 LastIndex
• Changed 1-based arrays to 0-based arrays where needed
• Changed to API2 Picture.Save with Picture.Formats type
• Updated Example Excel files from xls to xlsx format

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Now we’ve gathered two decades of those columns into a single book of over 1100 pages and over 100 demo projects. If you’re new to Xojo this is a terrific resource that goes into much more detail than the often-cryptic Xojo help files.

The ebook is in PDF, EPUB, and Kindle formats. Version: 1.1 (adds 18 new columns from 18.1-20.6)

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A new book called I Wish I Knew How To... Program OpenGL Legacy 2.1 64-bit for Windows with Xojo has been released in November 2022 with version 3.0. There are three plugins which come with the book : 1) High performance window and controls, 2) OpenGL 2.1 code, and 3)...

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A new book called I Wish I Knew How To... Program OpenGL Legacy 2.1 64-bit for Windows with Xojo has been released in November 2022 with version 3.0. There are three plugins which come with the book : 1) High performance window and controls, 2) OpenGL 2.1 code, and 3) Windows OS API calls for performance with 64-bit applications in Xojo.

A teaser YouTube video has been created at https://youtu.be/YR0PEtWJ6N4. More details can be viewed at https://scispec.ca/index.php/books/67-opengl-2-1-64-bit-for-windows which include the versions of each plugin.

The main points of this release is to have smooth graphics, fast refresh speeds, sharper graphics, and also a large amount of customization. More details about this release are:

Version 3.0 October. Released in November 2022.

• Wrote the book
• Updated to Xojo API 2 GUI and API2 Code
• Updated Windows OS algorithm for optimized graphics
• Created GLFWXojoPlugin.xojo_plugin
• Created OpenGLXojoPlugin.xojo_plugin
• Created WinXojoPlugin.xojo_plugin
• Most of the drawing algorithms are exposed to maximize customization
• Added mouse callback functionality
• Added keyboard callback functionality
• Wrote most examples with updated polling graphics, like the way game engines are writtenThis also comes with a book that has 22 chapters, more than 550 pages, that provides over 80 examples such as:

Examples include:

1. Many primitives (quads, triangles, etc.)
2. Fundamentals of colours
3. Movement and rotation
4. Points
5. Starting a graph and chart
6. Beginning lighting
7. Lots of texturing
8. Blender models
9. Transparency
10. Camera viewing
11. An introductory understanding of threads
12. Collision detection
13. Xojo Blocks game
14. Keyboard and mouse callback
15. This book includes 3-plugins: 1) OpenGL 2.1, 2) GLFW, 3) Some Windows API calls
16. ...and more.

ISBN: 978-1-927924-33-4

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There are many books that create console examples for Java,...

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There are many books that create console examples for Java, which is great to determine that the logic of a program works well. However, there is very little information on creating and controls and interact with forms and windows with Java. This is where this book is helpful.

There are 14 chapters and contains over 250 pages with over 60 example programs.

Examples include many of the controls, SQLite Database, Canvas, and much more. Many screenshots have been added to show the results of the code with an index to help find topics quickly. The ebook is pdf formatted with all examples including Java code.

Almost all these examples create controls without using global variables. Global variables can easily cause issues when the program becomes larger which creates difficult-to-detect logical errors.

Topics of examples include windows/forms, JTextField, JLabel, JEditorPane, JButtons, JLabels, additional commands, functions, classes/module introduction, text files, canvas, SQLite database introduction, and more.

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The book I...

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Now we’ve gathered nearly two decades of those columns into a single book of over 400 pages. If you use Xojo and use databases, this is a terrific resource!

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There are over 12 chapters with more than 270 pages with over 100 example programs. The book is a live document and will likely have updates in the future. Examples include graphing, pivot tables, speaking in Excel, printing pages, sorting, saving Excel files to PDF, and more. Many screenshots have been added to show the results of the code with a full index to help find topics quickly. This ebook is a PDF document and all examples include Xojo code. The free table of contents can be viewed at http://scispec.ca under the Books heading. Note: Microsoft Office must be installed for this to work. ISBN: 978-1-927924-15-0

New to Version 3.6 – May 2021

• Added copying a sheet (Example 16-1)
• Added TextToColumns (Example 3-29)
• Added Dynamic Row and Formula (Example 3-30)
• Added RemoveDuplicates method (Example 16-2)
• Added PasteSpecial example with constants (Example 12-4)
• Added sorting of Alphabetical and numerical data (Example 3-31)
• Added row count of total data with UsedRange.Rows.count command (Example 3-31)
• Added copy and paste example from two different files (Example 12-05)
• Added deletion of blank rows of data (Example 15-5)
• Added counting rows of data in individual columns (Example 10-16)
• Added the deletion of rows with a value equal to zero (Example 15-6)
• Added counting workbook sheets (Example 3-28)

New to Version 3.5 — April 2021

• Added copying a sheet (Example 16-1)
• Added Counting Workbook Sheets (Example 3-28) New to Version 3.4 – July 2019

Added insertion of new row (Example 15-1)

• Added deletion of a row (Example 15-2)
• Added insertion of a column (Example 15-3)
• Added deletion of a column (Example 15-4)

New to version 3.3 – April 2018

• Many thanks to Alberto De Poo for his editing suggestions
• Clarification: Examples will work with Office 365, and almost no examples will work in the reader (Chapter 5)
• Excel Viewer will be retired in April 2018
• Updated code in Example 2-3 to include Add and Visible to match the book
• Changed Example 2-3 (page 21) description where the only open sheet is Sheet1 and not Sheet 3
• Page 22 has the text changed to show Sheet 1 is open and not Sheet 3
• Page 53 (Example 3-15) changed data that is added to the second sheet
• Changed Example 3-15 to allow the option of language-neutral selection of the pages using an integer value. Caution – an integer value of 2 will select the second sheet and “Sheet2” will select the correct sheet tab name, even if it is not the second sheet
• Added alphabetical Excel sheet ordering in Example 3-26
• Added example to place an Excel Addin at runtime (Example Other-6)
• Added change text colour example (Example 3-27)

New to version 3.2 – December 2017

• Added Form Checkbox Example (Example 14-1)
• Added Form DropDown Control (Example 14-2)
• Added Form Spinner Control (Example 14-3)
• Added Form Listbox Control (Example 14-4)
• Added Form OptionButtons Control (Example 14-5)
• Added Form Labels Control (Example 14-6)

New to Version 3.1 - September 2017 – Excel 2016

• Added Scattered Plot Line Thickness Change (Example 4-13)
• Added Print Selected Cells example (Example 6-15)
• Added PrintArea of cells to the printer (Example 6-16)
• Added Detect Excel file in Read-only mode (Example 5-14)
• Suppress Informative Message Box for Read-Only files (Example 5-15)
• Bring Excel Application window to the front (Example Other 5)
• Added the ability to copy and paste column data from one sheet to another (Example 13-1)
• Added an example for a vertical lookup (VLOOKUP) from one sheet to another (Example 13-2)
• Added an example to move data from a listbox to Excel (Example 3-25)

New to Version 3.0 – March 2016:

• Bring the Xojo application in front of the Excel program (Other-3)
• Count Total Rows with Data (Example 10-12)
• Count Individual Rows with Data (Example 10-13)
• Convert Serial Date:Time to Gregorian Calendar Format (Example 4-12)
• Select Rows and Columns at the same time (Example 10-14)
• Clear Column Cell Data (Example 3-20)
• Clear Row Cell Data (Example 3-21)
• Delete Column Cell Data (Example 3-22)
• Delete Row Cell Data (Example 3-23)
• Move Worksheet (Example 3-24)
• Updated Xojo projects to the new Xojo format
• Updated to 2016 Excel
• Rbp to xojobinaryproject files
• Tested all projects
• Updated screen grabs
• Application framework updates
• Update sheet activate (Example 3-15)
• Make book and supplied example match (Example 4-6 and 4-7)
• Updated Gantt Chart (Example 4-9)
• Updated Pie Chart (Example 4-11)
• Total editing time is not available in Excel but is in Word (Example 5-1)
• The Office argument is now case sensitive for Example 5-3
• Added detection of Excel 2016 (Example 5-13)
• Updated and added vertical and horizontal print quality (Example 6-9)
• Get and Set paper size (Example 6-10)
• Added Office System Driver location for Example 11-1 – Access Database
• Added Speedometer Gauge example (Example 7-14)

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All examples have been created with native Xojo code with Xojo 2020 r2.1. There are two older books for AP1 (Xojo 2018 r4 – Canvas 2) and legacy code (Xojo 2014 r2 – Canvas).

Specific updates to the book are to numerous to mention, and here is a list of general changes:

New/Updates to Version 3.1 – Feb 2021

This version has the following material added:

• More new examples added. Special thanks to Martin Trippensee.
• Added new LineDash example
• Added new ShadowBrush example
• Added new LineJoin Example
• Added new LineCap Example
• Added PictureBrush Example
• Added LinearGradientBrush Example
• Added RadialGradientBrush Example

New/Updates to Version 3.0 — Jan 2021

• Remove UseGDIPlus commands as it is deprecated since version 2016r4.
• Updated performance tips in Chapter 1.
• Drawline is deprecated in some instances, using GraphicsPath instead
• DrawPolygon is deprecated, using GraphicsPath instead
• Graphics is using double instead of integer – updates throughout code
• Graphics DrawRect is deprecated. Using DrawRectangle instead
• Graphics DrawRoundRect is deprectated. Using DrawRoundRectangle instead
• Graphics DrawString is deprectated. Using DrawText instead
• Added #pragma for unused parameters
• Example programs to API2 will have the ‘API2’ text added to differentiate the newer examples from previous books
• Example project have all analysis warnings turned on to provide a more-thorough update
• ForeColor is deprecated. The newer DrawingColor is used instead.
• FillPolygon is deprecated. The newer FillPath is used instead.
• FillRect is deprecated. The newer FillRectangle is used instead.
• FillRoundRect is deprecated. The newer FillRoundRectangle command is used instead.
• DoubleBuffer is deprectated and removed
• EraseBackground is deprecated and removed
• PenWidth is deprecated. PenSize is used instead.
• PenHeight is deprecated. PenSize is used instead.
• Pixel is deprecated. RGBSurface.Pixel is used instead.
• MsgBox is deprecated, and MessageDialog.Show is used instead
• Pixel is deprecated, and RGBSurface.Pixel is used instead
• Mid is deprecated, and String.Middle is used instead
• OpenDialog is deprecated, OpenFileDialog is used instead
• EraseBackground is deprectated and removed from the programs
• OpenAsPicture is deprecated. FolderItem.OpenAsPicture is used instead.
• Save is deprecated. Using Save Folderitem instead.
• Updated to newer Picture.Formats picture types
• TextFont is Deprecated, FontName is used instead
• TextSize is Deprecated, FontSize is used instead
• StringShape is Deprecated, TextShape is used instead
• Text is deprecated, Value is used instead
• PageSetupDialog is deprecated, using ShowPageSetupDialog instead
• LiveScroll is deprecated, using AllowLiveScrolling instead
• StringWidth is deprecated, using TextWidth instead
• Border is deprecated, using BorderOpacity instead
• Append is deprecated, use Add instead
• Ubound is deprecated, LastIndex is used instead
• Remove is deprecated, using RemoveAt instead
• Mask is deprecated, using ApplyMask instead
• AcceptFocus is deprecated, using AllowFocus instead
• Mode is deprecated, using RunMode instead
• Using new IconTypes API2 code for MessageDialog
• Microseconds is deprecated, using System.Microseconds instead
• Run is deprecated, using Thread.Start instead
• Kill is deprecated, using Thread.Stop instead
• Default is deprecated, using IsDefault instead
• Icon is deprecated, IconType is used instead
• GraphicStop is Deprecated, using IconTypes.Stop instead
• SupportsHiDPI is deprecated, using AllowHiDPI instead
• Added Chapter 14 for GraphicsPath examples
• Redim is deprecated, using ResizeTo instead

What is included in the purchase of this book:

Fourteen chapters and over 450 pages with over 65 examples that both show and describe the code. This book is in PDF format with example chapter folders containing Xojo source code and running examples.

Eugene Dakin is the author of many computer programming reference materials and has many years experience creating technical programs.

The Table of Contents can be previewed at the author’s website at https://scispec.ca/index.php/books

ISBN: 978-1-927924-28-0

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This book “I Wish I Knew How to… Program Raspberry Pi 4B Electronics with Xojo” goes into the numerous programs that can be built to interact with many types of electronic gadgets. This book uses the latest Raspberry Pi 4B hardware with the newest version of the Buster Operating System.

Note: There are different books for the older versions — pre-Xojo 2019 r1.1, Jessie OS, and pre-Pi 3 B hardware. This book is for programing with the latest Raspberry Pi 4 B hardware, with the Buster OS, and API2 2019 r3.1 Xojo IDE with pigpio!

Major updates to the book are:

• Written using the newest Xojo 2019 r3.1 (Xojo API2) code
• Uses the latest Raspberry Pi Operating System (Buster)
• Wrote a new pigpio (wiringPi is deprecated) library wrapper (which is free at https://github.com/eugenedakin and called pigpio-GPIO).
• There are 27 chapters with more than 650 pages with over 70 example programs.
• The new and free pigpio wrapper can be downloaded at: https://github.com/eugenedakin/pigpio-GPIO

It is assumed that you have an intermediate understanding of both electronics and programming of the Xojo language.

This ebook is a PDF document and all examples include Xojo code. This is one of many books which can be purchased at Xojo Library. More information is available at the author’s website at: https://scispec.ca/index.php/books/54-program-raspberry-pi-4b-electronics-with-xojo-buster-edition

Note: Xojo has free Raspberry Pi licenses!

Version 3.3 – Jan 2021

• Updated all examples to use gpioterminate when closing the window to release gpio pins for use with other programs
• Updated code to Xojo 2020 r2.1
• Added Example 20-3 that uses SPI MISO MOSI interface (not bit-banging)

Version 3.2 — Dec 2020

• Updated example 27-2 to use 3.3 volts
• Updated Installing an OS to include newer imager program with updated steps.
• Modified quick QuickStart instructions to install pigpio with the latest Raspberry Pi OS operating system.
• Page 51, change legacy wiringPi and a few Wiring Pi names to pigpio

Version 3.1 — July 2020* Updated quickstart instructions with new link to pigpio library.

• Updated Is a package installed instructions.
• Updated purge program instructions.
• Updated 555 timer interrupt library wording in book.
• Removed wiringPi reference in Chapter 21.
• Replaced SetupGPIO command in book for gpioInitialise pigio command.
• Updated old references from 3B+ to 4B Raspberry Pi.
• Created Example 24-6 which has optimized code for a stepper motor driver which is quick and allows smooth motor movement on the OSEP STEPD-01.
• Fixed grammatial errors.
• Removed Dim and replaced with Var in examples.
• Created Example 24-7 with optimized timing code for Stepper motor with DRV8833 and NEMA 17.

ISBN: 978-1-927924-27-3

Note: Many thanks to Ulrich Bogun’s work with pigpio and Paul Lefebvre for his work with wiringPi.

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You can do many things with C++, and some have built the fastest programs on a Windows computer with this IDE. This book shows how to start programming Windows Desktop C++ Win32 API applications. C++ is the native desktop client for Windows desktop programs, which means that the programs are...

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You can do many things with C++, and some have built the fastest programs on a Windows computer with this IDE. This book shows how to start programming Windows Desktop C++ Win32 API applications. C++ is the native desktop client for Windows desktop programs, which means that the programs are fast.

There are 11 chapters with more than 300 pages and over 55 example programs/snippets of code.

Examples include creating controls, a new window, Color Dialog, Month Calendar, Listview, working with SQLite databases, and much more. Many screenshots have been added to show the results of the code with an index to help find topics quickly.

It is assumed that you have an intermediate understanding of a programming language before trying to program in C++.

This ebook is a PDF and all examples include C++ code.

ISBN: 978-1-927924-26-6

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Xojo provides a RAD (Rapid Application Development) environment because it protects the user...

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Xojo provides a RAD (Rapid Application Development) environment because it protects the user from the Operating System. Xojo has many helpful functions, and declares add to this existing toolbox.

Tapping into the Operating System directly with Declares opens up almost all of the options available for a program - but you are also out of the protection of the safe IDE (Integrated Development Environment) of Xojo. With the ability to change anything with the program or operating system, improper code also provides the ability of a crash. This is written for intermediate and advanced programmers of Xojo.

All examples have been converted to 32-bit, 64-bit, ANSI, and Unicode versions. This book is Version 3.0 (October 2018).

This book provides many examples that are converted from C++ functions to Xojo. Although there are many Visual Basic examples that can be converted, vb declare example are becoming outdated, have different parameters, or contain misinformation. For these reasons converting from C++ to Xojo is a long-lasting alternative and which this book provides many descriptions, reasons, references, and working examples for Xojo declares. There are 25 chapters and contains over 900 pages with over 140 example programs.

New to Version 3.3 — July 2019

• Added NetUserGetLocalGroups for getting user local privileges (Example 31-1)
• Added NetUserGetGroups example for getting user global privileges (Example 31-2)
• Added LOCALGROUPUSERSINFO_0 structure (Example 31-1)
• Added GROUPUSERSINFO_0 structure (Example 31-2)
• Get a MemoryBlock from a pointer snippet (Example 24-12)
• Added WSAStartup, GetHostName, WSACleanup in Example 30-3.
• Added GetHostByName function with HOSTENT structure for 32-bit and 64-bit versions in Example 30-2. This is an ANSI function that does not exist with Unicode.

• Added GetAddrInfo function for ANSI, Unicode, 32-bit, and 64-bit compatibility with the following structures, constants, and functions in Example 30-3 for multiple numerical IP addresses from a string http address:

• Socket function

• Address family type constants (Appendix CJ)
• Socket Type constants (Appendix CK)
• Socket Protocol constants (Appendix CL)
• Address Info flag constants (Appendix CM)
• Socket Type constants (Appendix CN)
• Socket error codes (Appendix CO)
• WSAGetErrorCodes method
• ADDRINFOW, ADDRINFOA structures
• GetAddrInfoW, GetAddrInfoA functions
• WSAErrorCodes Xojo method

• Three variations (union overloading) of inaddr1, inaddr2, and in_addr3

• Added get MemoryBlock from pointer in example 24-12

• Added GetAdaptersAddresses to retrieve addresses and data from adapters in Example 30-4 and include other data:

• GetAdapterAddresses function

• Get Adapter Address Flags (Appendix CP)
• IPADAPTERADDRESSES_LH Structures for 32-bit and 64-bit applications
• IPADAPTERUNICASTADDRESSLH structures for 32-bit and 64-bit applications
• IPADAPTERANYCASTADDRESSXP structures for 32-bit and 64-bit apps
• SOCKET_ADDRESS structures for 32-bit and 64-bit apps

• Added IP Adapter Flags (Appendix CQ)

• Updated Appendix A with C++ to Xojo Data Type conversions (Thanks Julian)

New to Version 3.2 — May 2019

• Create a UUID/GUID with Example 26-3 using UuidCreate, UuidToStringA, UuidToStringW, RpcStringFreeA, and RpcStringFreeW. This is compatible with 32-bit, 64-bit, ANSI, and Unicode Operating Systems.
• Added RPC return value constants in Appendix CC.
• Added Example 5-9 to detect if a window is active (has focus or not). This required the GetActiveWindow and modified FindWindow API. This is compatible with 32-bit, 64-bit, ANSI, and Unicode Operating Systems.
• Added Example 5-10 to detect if a window is active (has focus or not) and relates it also to the Z-order value. This required the GetForegroundWindow and modified FindWindow API. This is compatible with 32-bit, 64-bit, ANSI, and Unicode Operating Systems.
• Added HiDPi chapter for working with various screen resolutions with the program and Operating System
• Added IsProcessDPIAware function to determine the OS’s ability to resize controls based on screen resolution in Example 28-1. This is compatible with 32-bit, 64-bit, ANSI, and Unicode Operating Systems.
• Added PROCESSDPIAWARENESS and common HRESULT constant values in Appendix CD and Appendix CE for Example 28-2 on Process DPI Awareness.
• Added DPI monitor scaling percent and retrieving other HiDPI settings using GetDpiForMonitor, and MonitorFromWindow functions in Example 28-3. This is compatible with 32-bit, 64-bit, ANSI, and Unicode Operating Systems.
• Added MONITORDPITYPE, and MONITOR enumerations in Appendix CF and CG.
• Added Standard Clipboard Format constants in Appendix CH
• Added Chapter 29 to send text to the clipboard (Example 29-* and get text from the clipboard (Example 29-*. This is compatible with 32-bit, 64-bit, ANSI, and Unicode Operating Systems.

New to Version 3.1 — March 2019

• Added Xojo CreateServiceW method in Example 22-2 for Creating a new application service on Windows.
• Added MultiByteToWideChar function for converting ANSI to Uncode in Example 26-1. This is 32-bit, 64-bit, ANSI, and Unicode compatible.
• Added WideCharToMultiByte function for converting Uncode to ANSI in Example 26-2. This is 32-bit, 64-bit, ANSI, and Unicode compatible.
• Added IsWindowUnicode method in Example 2-11 to determine if the Window is ANSI or Unicode.
• Added default enumeration type in Appendix A
• Added ShellExecuteEx extended function example (Example 13-4) and is compatible with 32-bit, 64-bit, ANSI, and Unicode Operating Systems.
• Added dynamic DLL loading and dynamic function calling in Exmaple 27-1. Added functions are: FreeLibrary, LoadLibraryA and W, GetProcAddress, and CallWindowProcW. This example is compatible with 32-bit, 64-bit, ANSI, and Unicode Operating Systems.
• Added dynamic reading of DLL functions with the DumpBin command in Example 27.2. this works on 32-bit and 64-bit systems.
• Added External Method declare to Hard and Soft section in Chapter 1.

The targets for Version 3.0 are the following:

• Minimize use of Aliases
• ANSI, Unicode, 32-bit, adn 64-bit compatible for older and newer computers
• Add new functions
• Add module methods for increased portability across programs
• More Constants
• More API Declares
• More working API examples
• More native Windows controls
• Added many TargetWindow conditional statements
• Standardize the writing of declare methods
• All examples work in Xojo 2018 R3
• Removed ByVal prefix’s as this is the default setting
• Cleaned up previous code to be easier understood
• 30 added examples
• Over 66 updates

Note: Programming in Windows API is an advanced topic!

Examples include creating controls, a new window, GDI, Pens, brushes, Structures, Files, LoWord, Audio, play video, and much more. Many screenshots have been added to show the results of the code with an index to help find topics quickly.

Screen grab of the ChooseColor Dialogue Box example 15-1:

Play a Video (MPEG screen grab of video shown):

Play an Audio File with details:

The ebook is a pdf formatted document and all examples include Xojo code. The Table of Contents can be viewed at http://Scispec.ca.

ISBN: 978-1-927924-10-5

Note: This book covers Xojo API 1. If you're interested in Xojo API 2, you'll want the newer book, Implement API2 Declares With Xojo on Windows (XDL-0013).

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I Wish I Knew How To...Begin Programming Visual Studio 2019 C++/CLI and .NET on Windows Desktop will give you the starting code and controls needed to build your desktop program. Examples are shown with Variables, Conditional Statements, Arrays, Function and Subroutines, a long list of Controls, Text Files, and beginning...

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I Wish I Knew How To...Begin Programming Visual Studio 2019 C++/CLI and .NET on Windows Desktop will give you the starting code and controls needed to build your desktop program. Examples are shown with Variables, Conditional Statements, Arrays, Function and Subroutines, a long list of Controls, Text Files, and beginning simple Graphics.

This book is an introduction to those programmers who already know another language and are asked to update an existing C++/CLI program. Although the author wouldn't create a new project in C++/CLI, there are a large amount of programs written in this language that require maintenance, updates, and expanding of current projects.

C++/CLI is a slightly different language than pure C++ since the "CLI" portion of the language largely looks after memory management for you.

What is included in this book?

• 10 Chapters with over 300 pages
• More than 55 example projects
• All examples include code that you can open and run
• Uses the latest version of Visual Studio (2019)
• Uses the Community (Free) version of Visual Studio
• This is a great way to learn C++ while minimizing issues with memory

Topics and information about the book can be viewed at scispec.ca under the books section.

ISBN: 978-1-927924-25-9

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*Individuals and interactions over processes and tools

*Working software over...

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*Individuals and interactions over processes and tools

*Working software over comprehensive documentation

*Customer collaboration over contract negotiation

*Responding to change over following a plan

That is, while there is value in the items on the right, we value the items on the left more.

Let’s explore this in more depth.

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We will learn how to package an error as an exception, and how to trap it at run time....

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We will learn how to package an error as an exception, and how to trap it at run time. And we will study how our error traps interact with each other and with the main process thread.

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For many programs, saving data is relatively trivial. Text in an EditField can be saved to a simple text file, or the contents of a listbox can be saved in a tab-delimitated file. Both of these tasks can easily be automated for...

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For many programs, saving data is relatively trivial. Text in an EditField can be saved to a simple text file, or the contents of a listbox can be saved in a tab-delimitated file. Both of these tasks can easily be automated for simple reuse (for instance, it’s not hard to create EditField or Listbox subclasses that know how to save and reload themselves from a file).

But many programs require a slightly more complicated data structure than mere text. Even if the data itself is fairly straightforward, it may be scattered apart in different areas of your program (i.e., some in a Listbox, some in an EditField, some elsewhere), or it may simply be that you have different kinds of data (numbers and text and colors and pictures) and they can’t all be easily stored in a single file.

I had a vague dream: wouldn’t it be great if there was a pre-written routine, a class or module or something, where I could just pass it my data structure and it would auto-magically save and retrieve the entire thing no matter what the structure or what it contained? Just imagine how much easier that would make developing a new program!

Okay, so that’s still a fantasy, and probably will never happen, but I’ve created something that takes me part of the way there. Instead of trying to create something that will save every type of data structure, I’ve settled on my favorite data structure, the dictionary object. Dictionaries are awesome because they can contain almost anything (even other dictionaries). They provide lightening quick access, can be dynamically adjusted, and are nearly as easy to use as arrays.

What I have done is create a system of dictionary extensions and datatype classes that allow the contents of a dictionary object to be saved to/loaded from a disk file. I have unimaginatively called this “SaveDict.”

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At the REALbasic Developer Conference in Frankfurt at the end of 2008 at least two developers talked to me about how to generate print files. They seemed to think this was something like brewing magic...

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At the REALbasic Developer Conference in Frankfurt at the end of 2008 at least two developers talked to me about how to generate print files. They seemed to think this was something like brewing magic potions in Professor Snapes lessons!

Both developers were surprised to hear that I print several standard letters with my software without experiencing all those problems. But I’ll let it out at the beginning: I am cheating.

Instead of worrying about the complexities of formatting styled text and printing it on different platforms, I build new “print” documents from a pre-formatted template file. That way I don’t care about the structure or design of that file, or have to code my own printing routine. Instead I just care about placing the new content within the existing template file.

That’s easy! Perhaps it’s too basic for an article, but since these developers hadn’t used this approach, perhaps others out there will benefit from the same technique.

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The REALbasic documentation regarding printing of graphics is not as helpful as it should be. This article discusses the issues and presents one method of writing a cross-platform program that prints styled text and graphics.

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Within the field of data modeling there are several kinds of models and in order to make sure we are all talking about the same thing I need to briefly lay out,...

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Within the field of data modeling there are several kinds of models and in order to make sure we are all talking about the same thing I need to briefly lay out, in general terms, the kinds of Information Models that exist. For the purpose of this article I will use a fictitious movie rental company, called “Movies R Us”.

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Yes, we can: with a design pattern called “Template-Method.” It’s helpful, if you have a fixed sequence of “something” but a lot of variations in that “something.” Is it complicated to make or difficult to understand? Does it need sophisticated mechanics? No, it’s just the good and straightforward use of the good old mechanism called inheritance.

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First, we study the concept of a histogram and how it relates to image data. We then explore two ways of modifying the histogram data.

Next, we build a set of REALbasic classes that will build and manage an image’s histogram data....

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First, we study the concept of a histogram and how it relates to image data. We then explore two ways of modifying the histogram data.

Next, we build a set of REALbasic classes that will build and manage an image’s histogram data. And then we will use these classes to analyze a handful of test images.

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• It supports transparency so you no longer need a separate mask file for each graphic.

• No matter how many pictures you have or what sizes they are, there’s only a single file to link to or import into...

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• It supports transparency so you no longer need a separate mask file for each graphic.

• No matter how many pictures you have or what sizes they are, there’s only a single file to link to or import into your REALbasic project.

• Revisions to artwork or new graphics require zero additional REALbasic code. Just call your graphic by name to use it.

• No plugins or special tools are needed to use Picture Packer.

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But most modern engines do more than just check and correct words. They recheck an edited word to see if it is still correct. They build a list of user-defined words and save that list to a file for later use. They replace all instances of a suspect word with one that the user provides. They also ignore words that match a certain pattern.

Some engines will also do basic style checks. Style checks, however, are beyond the scope of this article. Nevertheless, we will show how to add two simple checks to the basic engine.

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Many of these algorithms have been used...

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Many of these algorithms have been used in medical and scientific imaging. Many are also used for forensic and military work. And thanks to products such as Adobe PhotoShop, the consumer public gets to use some of these algorithms on their personal photos.

In this intro article on image processing techniques we will take a quick look at the field of image processing. Then we will study three basic processing algorithms. Next, we will incorporate these algorithms into three Thread subclasses. Then we will try out these subclasses on a standard test image.

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In the first half of this article, Jens sharpens the terms: user, using-code, using-code programmer, donating-code, donating-code programmer. He’ll show that we unfortunately have two separate channels mixed up in our...

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In the first half of this article, Jens sharpens the terms: user, using-code, using-code programmer, donating-code, donating-code programmer. He’ll show that we unfortunately have two separate channels mixed up in our applications: the information channel and the bug channel.

In the second half, he’ll show a technical solution to get those channels strictly separated and gain much clearer interfaces. This will lead to code that’s a lot easier to read: crystal-clear code.

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Visual Studio Basic and Xojo are remarkably similar... but just enough different that those subtle changes can throw you off your programming game. What you need is a guide, someone to show you the Xojo ropes.

Thankfully, Paul Abell is here to show you how to make the VB.net to Xojo...

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Visual Studio Basic and Xojo are remarkably similar... but just enough different that those subtle changes can throw you off your programming game. What you need is a guide, someone to show you the Xojo ropes.

Thankfully, Paul Abell is here to show you how to make the VB.net to Xojo transition. He's new to Xojo and still learning, but in this 53-page ebook he'll show you the conversion process, point out common Xojo misconceptions VB users make, and help you with tips and techniques to make your move to Xojo easy and successful!

Some of the topics discussed include explanations in how the two languages handle files, menus, colors, sounds, errors, printing, and more. You'll learn how to add features like using the Escape key to close windows, make pictures fit a box, and more.

Paul even includes the full source of a Xojo Windows project he wrote, XJSnip, which lets you manage snippets of Xojo code.

Ebook is in PDF, EPUB, and Mobi (Kindle) formats.

Version 1.0 -- Published 2019.05.30

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There are many books that create console examples for Python, which is great to determine that the logic of a program works well. However, there is very little information on creating and controls and interact with forms and windows with Python 3. This is where this book is helpful.

There are...

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There are many books that create console examples for Python, which is great to determine that the logic of a program works well. However, there is very little information on creating and controls and interact with forms and windows with Python 3. This is where this book is helpful.

There are 17 chapters and contains over 175 pages with over 70 example programs. Many screenshots have been added to show the results of the code with an index to help find topics quickly. All examples have been tested in 32-bit and 64-bit modes (where available) and the ebook is PDF with all examples including Python 3 code.

Almost all these examples create controls without using global variables. Global variables can easily cause issues when the program becomes larger which creates difficult-to-detect logical errors.

Topics of examples include windows/forms, listbox, scrollbar, drop-down menus, buttons, labels, additional widgets, functions, classes/module introduction, text files, canvas, SQLite database introduction, and more.

There are many different types of ways to edit code, and the IDLE IDE is a common free version that is available for many operating systems. It's a great way to start!

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The focus of this book is to work with topics related to the Canvas Control. All...

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The focus of this book is to work with topics related to the Canvas Control. All of these examples are created with native Xojo code and does not use any third party programs. The examples have been tested on Windows 10, OS X Mojave 10.14.3, and Ubuntu 18.04 Operating Systems.

By the time you finish the book you will be able to apply skills from these examples to create your own programs!

Examples were tested on Xojo 2018r4. There is an older Canvas book that has legacy code for Xojo 2014r2 that works without the changes in the Xojo Language.

Goals of the newer updated Canvas 2 book:

• Most drawings are drawn in the Paint event with the Graphics property
• Drawing speed has been increased
• Windows calls the paint event with Invalidate(False) to improve speed and prevent erasing the canvas
• Most examples have been converted to double data-types for drawing locations on the canvas
• Faster RGBSurface.Pixel drawing has been updated from the older graphics. Pixel method (deprecated since 2016 r1)
• Added basic sound in the Space Ship Shooter game
• Removed most PBuffer picture properties and replaced with algorithms to draw in the Paint event (some examples required this property to exist)
• Removed GDIPlus from Windows examples
• Added a couple HiDPI/Retina Examples
• Increased resolution of example screen grabs
• Used the more popular TargetWindows instead of TargetWin32 command
• Added PDF bookmarks for easier reference
• Attempts were made to maintain the same output of the original examples from the first Canvas book to the second Canvas book

What is included with the purchase of this book:

Thirteen chapters and over 450 pages of code to build 60 example programs. Create realistic 2D game motion. It also includes example images and the ways to use them in programs. The book is in PDF format with example chapter folders containing Xojo source code and running examples.

The ebook is a pdf formatted document and all examples include Xojo code. The Table of Contents can be viewed for this book at the authors website (https://scispec.ca)

ISBN: 978-1-927924-24-2

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If you need reports that can be edited after...

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If you need reports that can be edited after printing, or can be saved in multiple formats such as the common docx or PDF format, then this book is for you. Most business applications require the famous Windows operating system and is the standard around the world. This book provides an introductory and intermediate steps with over 100 examples to get you on your way to make successful applications. There is one plugin which is supplied by Xojo that needs to be included in the Plugins folder. This book contains over 250 pages and explains every example in detail.

Examples include:

• Printing
• Tables
• Text modification
• Files
• Envelopes
• Mail Merging
• …and more!

Download the table of contents at the author's website to view the book's topics.

New to Version 2.5 (January 2019):

• Added FileDialog SaveAs Example 2-15
• Added PDF Bookmarks to find information easier

New to Version 2.4 (December 2017):

• Added new >2010 Word Go To Bookmark Example (Example 10-6a)
• Added Checkbox Content Controls (Example 16-1)
• Added Combobox Control (Example 16-2)
• Added Control Date picker (Example 16-3)
• Added Drop-Down List Control (Example 16-4)
• Added Picture Control (Example 16-5)
• Added Plain Text Control (Example 16-6)
• Added Rich Text Control (Example 16-7)
• Added Bullet example (Example 16-7)

New to Version 2.0 – October 2013

• Updated examples to the new Xojo format
• Integrated instructions for the new GUI Xojo style
• Updated and expanded index to easier find methods
• Plugin addition instructions
• Added open password protected file (Example 2-7)
• Modify example 3-6 example window title
• Default example files to C:\test\ folder
• Change Example 3-6 Colour example for fifth word
• Update Example 4-7 window title
• Change Example 6-1 window header
• Rename Example 7-3 file
• Added Table Cell Shading (Example 9-17)
• Update Example 10-5
• Updated Example 10-6 filename
• Update Example 11-3 Printer Settings
• Feedback request 21378 has been fixed for InchesTo… conversion (11-4)
• Updated and added references to Index
• Updated Table of Contents

New to Version 2.2 – September 2015

• Added save PDF file
• Added htm file saving
• Added 25 different file save types
• Added highlighting text (Example 3-11)
• Added unhighlighting text (Example 3-12)
• Add a picture to a table (Example 9-18)

New to Version 2.3 – September 2016

• Added UTF-8 SaveAs2 file types (Example 2-10)
• Added UTF-8 Open file types (Example 2-11)
• List all open Word Documents (Example 2-12)
• Search for a specific running Document (2-13)
• Silently close a specific Document (2-14)

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OpenGL is one of the few standards for creating a powerful software interface. There is a great deal of reusable code and material on the internet that can be adapted to Xojo.

This book builds a strong foundation on programming graphics. This is an advanced graphics book and it is highly recommended to understand the Xojo programming language first. An intermediate book called I Wish I Knew How to… Program the Canvas Control with Xojo Desktop is a good book to study and understand before learning OpenGL. Examples in this book have been created and tested on Windows 10 and OSX El Capitan operating systems. This book is focused on 32-bit programming. Much of the code works with a timer to provide smooth graphics and animation. Below are a few videos of examples that are included in this book. These examples are currently 32-bit.

Examples include:

• Many primitives (quads, triangles, etc.)
• Fundamentals of colours
• Movement and rotation
• Points
• Starting a graph and chart
• Beginning lighting
• Lots of texturing
• Blender models
• Transparency
• Camera viewing
• An introductory understanding of threads
• Collision detection
• Xojo Blocks game
• A first person viewer (no shooting)
• …and more

There are over 550 pages with 23 chapters and more than 80 example programs with this book. This ebook is pdf formatted and all examples are included as Xojo code. It is assumed that you have an intermediate understanding of both Graphics programming and of the Xojo language.

New to Version 2.2 – January 2017

• Added GL_MULT Blurring Example 24-01
• Added GL_ACCUM Blurring Example 24-02
• Added Will Shanks code to make glAccum work on OSX

New to Version 2.3 – November 2018

• Modified Example 16-3 to be compatible with New Picture format (Thank you to Prof. Ramon Sastre). See Feedback 53484.

Version 2.1-Release December 2016.

• fixed a DrawString command to be compatible with Xojo 2016r4

Version 2.0 -Released in November 2016.

ISBN: 978-1-927924-01-3

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This book “I Wish I Knew How to…Program Raspberry Pi 3B+ Electronics with Xojo” goes into the numerous programs that can be built to interact with many types of electronic gadgets. This book uses the latest Raspberry Pi 3B+ hardware with the newest version of the Stretch Operating System. For Raspberry Pi 4B, see the more recent Program Raspberry Pi 4B Electronics with Xojo book.

The “I Wish I Knew” series contains technical data and advice that makes sense and contains practical and numerous examples with explanations to allow you to ease into the steep programming curve. There are many electronic examples and the book also has many references to the Stretch Linux Operating System that is used with the Raspberry Pi.

You can start building your own electronic projects with Raspberry Pi today!

Click to download the Raspberry Pi Table of contents at http://scispec.ca, which has a listing of all of the examples in the book, many of the terms, and commands used in the operating system. There are 26 chapters with more than 600 pages with over 70 example programs. Examples include LED displays, Stepper motors, Ultrasonic distance, LCD words, graphics, and custom glyphs, infrared sensors, photo and video recording, servos, LEDs, infrared receivers, and more. Many screenshots have been added to show the results of the code with a full index to help find topics quickly. Examples include a circuit diagram or breakout board diagram to help with wiring the components on the Raspberry Pi. The book is in PDF format with example chapter folders containing Xojo source code and running examples.

It is assumed that you have an intermediate understanding of both electronics and programming of the Xojo language. This ebook is a pdf formatted document and all examples include Xojo code.

Note: Xojo has free Raspberry Pi licenses!

ISBN: 978-1-927924-21-1

Version 2.0 – Released in July 2018

New Additions in Version 2.0

• Wrote the book with the newest Raspberry Pi 3 B+
• Note: Jessie version of OS has been updated to Stretch version of OS (Aug 2017)
• Add Chmod command to all programs for proper permissions (All Examples)
• Added Enabling instruction for I2C enabling in Raspberry Pi 3 Model B Rev 1.2 (Chapter 21)
• Added bus service Error solution when running Xojo program on Raspberry Pi Stretch in Appendix D
• Added Stepper motor Full-Step example DRV8833 (Example 24-1)
• Added runtime Half-step option for a stepper motor DRV8833 (Example 24-2)
• Added modification of I2C baud rate in post 2015 Raspberry Pi (Chapter 21)
• For I2C pre-2015 use i2cbcm2078, and post-2015 use i2cbcm2835 (Chapter 21)
• Too many files open error solution (Appendix D)
• Added Chapter 25 for LSM9DS0 9-Degrees-Of-Freedom sensor
• Added historical information about Raspberry Pi operating system naming convention
• Power supply for Raspberry Pi 3 B+ is 2.4 Amps (instead of 2.0 Amps)
• Added VNC Server and Viewer steps when connecting to a Raspberry Pi (Chapter 2)
• Add Normal and Pirate Wiring for DS18B20 (Chapter 9)
• Add ADXL 377 G-Force (Example 25-2)
• Added stepper motor troubleshooting solutions in Appendix D
• Added L293D Dual H-Bridges to power motors independently (Example 6-11)
• Added Stepper motor Wave-Step example DRV8833 (Example 24-3)
• Added Stepper motor Half-Drive 5.0-volt L293D (Example24-4)
• Added Stepper motor Full-Step example TB6612 (Example 24-5)
• Added Chapter 26 for LED displays. [a. Added static 8x8 LED matrix display (Example 26-1) b. Added dynamic 8x8 LED matrix display (Example 26-2) c. Added static 16x8 LED matrix display (Example 26-3) d. Added dynamic 16x8 LED matrix display (Example 26-4) e. Added numerical 7-segment LED (Example 26-5) f. Added alpha numeric 4-digit display (Example 26-6)]

Updates:

• Updated Change Keyboard configuration for steps with Stretch OS (Chapter 2)
• Updated Creating Run Icon on Desktop for Stretch
• Updated Creating a Screen Grab (Scrot) program on the Desktop
• Updated Pi Board Version Table (Chapter 2)
• Updated Example 3-4 to play sound through omxplayer with headphone jack
• wiringPi is updated to 2.46 for the new Pi v3+
• Updated GPIO binary code of Paul Lefebvre for programs
• Added unintentional reboot of Raspberry Pi in Error Solutions (Appendix D)

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The book I Wish I Knew How To...Program Windows WMIC With Xojo is able to query hundreds of parameters on the computer and this code can be implemented into your program. This is a reference book that shows the many possible options of WMIC and retrieves data seamlessly to your program.

The most difficult part of working with WMIC is to provide the correct search parameters, which this book covers in all of these chapters.

There are 60 chapters which contains over 550 pages and more than 60 example programs that can retrieved hundreds of specifications. Many screen shots have been added to show the results of the code with an index to help find topics quickly. Each chapter has a working version of the WMIC command that can be used.

A few of the many examples include drivers, network protocols, Network Interface Card (NIC), motherboard data and specifications, boot configurations, the BIOS, and much more.

Many thanks to Robin Lauryssen-Mitchell with his help with the book.

This ebook if a pdf formatted document and all examples include Xojo code. This is one of many books which can be purchased at Xojo Library (http://xojolibrary.com/).

ISBN: 978-1-927924-20-4

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This new book is called I Wish I Knew How To…Use MemoryBlocks with Xojo. The book provides working examples to modify memory, work with structures, and work with binary files. Eugene goes through Bitwise Operations, classic and new framework reading and writing of memory blocks, adding, editing, and removing data, and binary streams.

MemoryBlocks are difficult to master, and provide added speed and flexibility to your programs. Because this is a more challenging topic, there are few resources that are written and even less examples are available. This book provides information and examples on how to work through each solution whether you are a beginning or advanced Xojo programmer.

• Introduces memoryblock addresses and data theory
• Learn about data assignment and retrieval
• Techniques available for text encoding and decoding
• Code for Windows, OSX and Linux OS’s
• Understand solutions with strings and text
• Create, save, and read binary mixed data type binary data files
• Examples include both Classic MemoryBlock and New Framework MemoryBlock data types
• And more…

There are more than 180 pages with over 55 example programs that encompass 10 Chapters. These examples were written and tested with Xojo 2017 r2.

This ebook is a PDF document and all examples include Xojo code. It is presumed that you have an intermediate understanding of the Xojo programming language.

The MemoryBlock Table of Contents is available on the authors website at http://scispec.ca and click in the books header to search for the book. The table of contents has a listing of all the examples in the books, and many terms, and commands used with MemoryBlocks.

ISBN: 978-1-927924-18-1

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This book I Wish I Knew How to… Program Windows 10 Registry with Xojo shows how to perform multiple changes (CRUD) with the registry.

The I Wish I Knew series contains technical data and advice that makes sense and contains practical and numerous examples with explanations to allow you to ease into the steep programming curve. There are many examples with both pure Xojo code and also this book has a module which contains the Delcare API's to further increase your programming options.

The book's Table Of Contents can be viewed on the author's website at http://scispec.ca and click on the Books menu.

There are over 10 chapters with more than 180 pages with over 50 example programs.

Some of the examples are CRUD (Create, Read, Update, and Delete) functions with the registry, using the declare examples has the ability to read and write to and from the many registry types, such as REGMULTISZ, REGEXPANDSZ, REGDWORDBIGENDIAN, REGDWORDLITTLEENDIAN, and REG_BINARY. The book is in PDF format with example chapter folders containing Xojo source code and running examples.

Update: The Windows Registry book has a hexadecimal REG_BINARY type example added (Example 5-14).

It is assumed that you have an intermediate understanding of both the Windows OS, registry, and of the Xojo language.

This ebook is a pdf formatted document and all examples include Xojo code.

ISBN: 978-1-927924-17-4

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This book I Wish I Knew How to… Program Raspberry Pi 2 B and Raspberry Pi 3 B Electronics with Xojo goes into the numerous programs that can be built to interact with many types of electronic gadgets. This book is for Xojo 2017 r3 and earlier Xojo versions with the Jessie Operating System and Raspberry Pi 2 B and Raspberry Pi 3 B hardware. For Raspberry Pi 4B, see the more recent Program Raspberry Pi 4B Electronics with Xojo book.

The I Wish I Knew series contains technical data and advice that makes sense and contains practical and numerous examples with explanations to allow you to ease into the steep programming curve. There are many electronic examples and the book also has many references to the Jessie Linux Operating System that is used with the Raspberry Pi.

You can start building your own electronic projects with Raspberry Pi today!

You can download the Raspberry Pi Table of Contents, which has a listing of all of the examples in the book, many of the terms, and commands used in the operating system.

There are over 22 chapters with more than 450 pages with over 60 example programs.

Examples include Ultrasonic distance, LCD words, graphics, and custom glyphs, infrared sensors, photo and video recording, servos, LEDs, infrared receivers, and more. Many screenshots have been added to show the results of the code with a full index to help find topics quickly. Examples include a circuit diagram or breakout board diagram to help with wiring the components on the Raspberry Pi. The book is in PDF format with example chapter folders containing Xojo source code and running examples.

It is assumed that you have an intermediate understanding of both electronics and programming of the Xojo language.

This ebook is a pdf formatted document and all examples include Xojo code. This is one of many books which can be purchased at Xojo Library.

Note: A license is required to build the programs for Xojo — the demo version does not build Raspberry Pi programs.

ISBN: 978-1-927924-16-7

Version 1.2 – Released in July 2016

• Updated labels on Example 6-6 servo breadboard layout
• Updated labels on Example 8-3 breadboard layout for resistor rotation
• Updated label on Example 9-1 breadboard layout with GPIO 4
• Added example 11-4 with Raspberry Pi NoIR Camera V2
• Updated labels on Example 13-1 breadboard layout
• Updated labels on Example 14-1 breadboard layout
• Updated labels on Example 14-3 breadboard layout
• Updated labels on Example 15-1 breadboard layout
• Updated labels on Example 17-1 breadboard layout
• Updated labels on Example 18-1 breadboard layout
• Updated labels on Example 18-2 breadboard layout
• All book examples were tested with the Raspberry Pi 3 B with Jessie OS and were compatible with the same tests on teh Raspberry Pi 2 B
• Updated labels on Example 21-1 breadboard layout
• Added two simultaneous temperature I2C sensor readings example
• Added Example 21-3 for the I2C MCP4725 DAC
• Added Exampe 21-4 for the I2C MPL3115A2
• Updated Chapter 1 breakout board abbreviations, pins, and GPIO’s
• Added Example 13-2 Maxsonar MB1010 Rangefinder
• Added Operating System upgrade command (Chapter 2)
• Added GPIO expansion output example for LED’s (Example 23-1) MCP23017
• Added GPIO expansion digital input example (Example 23-2) MCP23017

Version 1.3 – Released in September 2016

• Added Operating System upgrade command (Chapter 2)
• Change I2C Baudrate in Chapter 21.
• Added WiringPi references to Index
• Add Cleanup old packages (autoclean) command (Chapter 2)
• Added the command to list installed programs (packages) in chapter 2
• Added purge command to remove program and configuration files in Chapter 2
• Read MAX31855 Thermocouple Amplifier Breakout v2.0 (Example 20-2)
• Get temperature from K-type thermocouple (Example 20-2)
• Added Quickstart instructions in Chapter 1
• Updated Pi SD card backup and restore commands for OSX (Chapter 2)

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• Takes an easy approach with over 90 examples covering over 210 pages to guide you...

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• Takes an easy approach with over 90 examples covering over 210 pages to guide you through the software and show you what to do.
• A full index and table of contents which works like a reference book.
• Explanations for every example project included with the book.

This book teaches you how to use Excel with the Xojo programming language, covering Ranges, Charts, Formatting, Printing, and more. What you will learn from this book. Introduction to Real Studio and the Environment. Creating, accessing, and Saving an Excel file. Getting, changing, and modifying cell data. Showing your data in charts. Properties and files in Excel. Printing in Excel. Pivot Table Analysis. Find and replace. Macros. Ranges. and more. The table of contents and Index can be downloaded from the Author's Website.

This book is a live document and will be updated.

Eugene Dakin is based in Calgary and has written many books on programming: Program Excel with Real Studio in Windows, Program MS Access with Real Studio in Windows, Program Word 2010 with Real Studio in Windows, Begin Programming with Real Studio in Windows, and Program Excel 2010 with Xojo in Windows.

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There are over 12 chapters with more than 270 pages with over 100 example programs. The book is a live document and will likely have updates in the future. Examples include graphing, pivot tables, speaking in Excel, printing pages, sorting, saving Excel files to PDF, and more. Many screenshots have been added to show the results of the code with a full index to help find topics quickly. This ebook is a PDF document and all examples include Xojo code. The free table of contents can be viewed at http://scispec.ca under the Books heading. Note: Microsoft Office must be installed for this to work. ISBN: 978-1-927924-15-0

version 3.2 – December 2017 * Added Form Checkbox Example (Example 14-1)* Added Form DropDown Control (Example 14-2)* Added Form Spinner Control (Example 14-3)* Added Form Listbox Control (Example 14-4)* Added Form OptionButtons Control (Example 14-5)* Added Form Labels Control (Example 14-6)

New to Version 3.1 - September 2017 – Excel 2016

• Added Scattered Plot Line Thickness Change (Example 4-13)
• Added Print Selected Cells example (Example 6-15)
• Added PrintArea of cells to the printer (Example 6-16)
• Added Detect Excel file in Read-only mode (Example 5-14)
• Suppress Informative Message Box for Read-Only files (Example 5-15)
• Bring Excel Application window to the front (Example Other 5)
• Added the ability to copy and paste column data from one sheet to another (Example 13-1)
• Added an example for a vertical lookup (VLOOKUP) from one sheet to another (Example 13-2)
• Added an example to move data from a listbox to Excel (Example 3-25)

New to Version 3.0 – March 2016:

• Bring the Xojo application in front of the Excel program (Other-3)
• Count Total Rows with Data (Example 10-12)
• Count Individual Rows with Data (Example 10-13)
• Convert Serial Date:Time to Gregorian Calendar Format (Example 4-12)
• Select Rows and Columns at the same time (Example 10-14)
• Clear Column Cell Data (Example 3-20)
• Clear Row Cell Data (Example 3-21)
• Delete Column Cell Data (Example 3-22)
• Delete Row Cell Data (Example 3-23)
• Move Worksheet (Example 3-24)
• Updated Xojo projects to the new Xojo format
• Updated to 2016 Excel
• Rbp to xojobinaryproject files
• Tested all projects
• Updated screen grabs
• Application framework updates
• Update sheet activate (Example 3-15)
• Make book and supplied example match (Example 4-6 and 4-7)
• Updated Gantt Chart (Example 4-9)
• Updated Pie Chart (Example 4-11)
• Total editing time is not available in Excel but is in Word (Example 5-1)
• The Office argument is now case sensitive for Example 5-3
• Added detection of Excel 2016 (Example 5-13)
• Updated and added vertical and horizontal print quality (Example 6-9)
• Get and Set paper size (Example 6-10)
• Added Office System Driver location for Example 11-1 – Access Database
• Added Speedometer Gauge example (Example 7-14)

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Examples were tested with Xojo 2015 r2.4, and Windows 8.1, 10, OS X Yosemite 10.10.4, and Ubuntu 15.04 (32-bit). This ebook is a PDF and all examples include Xojo code. The free table of contents can be viewed at the author's website under the books heading. ISBN: 978-1-927924-13-6

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The Concept of Readability

Word processors...

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The Concept of Readability

Word processors are both a boon and bane to writers. They allow writers to edit a document without retyping the whole thing. They can check a document's spelling and grammar, tasks that are otherwise tedious to do by hand. Some even have built-in dictionaries to help writers decide if they chose the right words.

JC Walks through the measures of readability and the implementation of measures in this article.

Downloads for this article are available at: http://www.rbdeveloper.com/browse/5.5/5509/

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This book provides many object oriented programming examples and explains some of the terminology around programming such as polymorphism, introspection, extends, explicit unboxing, overriding, and other terms. To explain these terms more clearly, many coded examples have been given to show the logic and reasoning behind these terms.

There are 12 chapters and contains over 90 pages and 29 example programs. Many screenshots have been added to show the results of the code with an index to help find topics quickly. The example programs were tested with Xojo 2015 r2.2 on Windows 8.1, OS X Yosemite 10.10.4, and Ubuntu 15.04 32-bit version. The ebook is a PDF and all examples include Xojo code. The free table of contents can be viewed at the author's website under the books heading.

ISBN: 978-1-927924-12-9

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• Takes an easy approach with over 80 examples covering over 260 pages to guide you through the software and show you what to do.
• A full index and table of contents which works like a reference book.
• Explanations for every example project included with the book.
• Added a chapter on working with ADODB for faster database access

This book teaches you how to use Access with the Xojo programming language, covering Reports, create, delete, edit, and more. What you will learn from this book:

• Introduction to Xojo and the Environment
• Getting Data from the Access Database File
• Desktop Connection to an Access File
• Report Printing (many examples)
• Database Fundamentals
• Database file handling
• Handling apostrophes
• New Database tables
• Number formatting
• Math calculations
• Building a menu
• Database joins
• Value of fields
• Deleting data
• Adding Data
• Field spaces
• Alias's
• …and more.

The table of contents and Index can be downloaded from the Author's Website.

This book is a live document and will be updated.

Eugene Dakin is based in Calgary and has written many books on programming: Program Excel with Real Studio in Windows, Program MS Access with Real Studio in Windows, Program Word 2010 with Real Studio in Windows, Begin Programming with Real Studio in Windows, and Program Excel 2010 with Xojo in Windows

ISBN: 978-1-927924-11-2

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The book is written as a guide and reference to Xojo programmers who program desktop applications in the Windows Operating System. Dynamic Link Libraries (dll) are created with Visual Studio to allow extra functionality in Xojo. Feel free to view the complete table of contents which includes a glimpse of the many topics in the book. There are 8 chapters with over 300 pages and 27 example programs. Examples include creating a manual plugin, using prebuilt templates, class constants, modules, controls, events, and more. Many screen grabs have been added to show the results of code with a helpful index to find topics quickly. ISBN: 978-1-927924-09-9

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• Joins
• Thread and Progress Bar
• Transaction
• Alias
• Encryption/Decryption
• CRUD (Create, Read, Update, Delete)
• Reports
• Prepared Statements (Select, Update, Delete, Insert)
• SQL Injection
• SQLite Reserved Words
• Delete Field Workaround
• Add Table...

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• Joins
• Thread and Progress Bar
• Transaction
• Alias
• Encryption/Decryption
• CRUD (Create, Read, Update, Delete)
• Reports
• Prepared Statements (Select, Update, Delete, Insert)
• SQL Injection
• SQLite Reserved Words
• Delete Field Workaround
• Add Table field
• Rename existing Table

There are over 300 pages, greater than 70 example programs which cover over 20 chapters.

New to Version 1.2 – March 2015: This version has the following material added:

• Maintenance (Analyze) Other-1
• Added more items to book index (SQL: INSERT INTO, etc.)
• Add data with a recordset (Example 6-3)
• Updated saved examples to Xojo 2015 r1 format
• Added multiuser (WAL) example (Example 25-2)

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The topics I cover in this article include in-memory databases, using SQLite's built-in functions, attaching one database to another database, and making use of the special sqlite_master table. My hope is that this article will give you some ideas for how to incorporate one or more of the REAL SQL Database's extra features in your own REALbasic projects. Some of the features I'll be discussing can be useful in any project, even those that aren't specifically database projects. Updated Feb 7, 2015 for the newer Sqlite Database.

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A remote machine can access your application no differently than a local client, for that matter, any number of remote clients can use your application with high...

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A remote machine can access your application no differently than a local client, for that matter, any number of remote clients can use your application with high scalability and no extra deployment of the application!

Web interfaces are platform-neutral, and thus can be accessed from platforms that REALbasic natively does not support completely (eg, various flavors of Linux or deprecated versions of Windows) or at all (eg, Solaris, BeOS, BSD, and so on).

Included absolutely free is the amazingly easy to use Inline HTTP class from Babbage Technologies. Yes, you get it all for a laughable price, so download it today and slap a web interface onto your program. Go ahead, it really is easy.

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Vector graphics are ideal for things like block diagrams, charts, and graphs - anywhere you need graphics composed mainly of simple elements with nice clean lines. However, you may also use the vector graphics classes just to get a little more power for your traditional drawing. For example, if you need to draw a rotated string or picture, then vector graphics are the only way to do it in native RB.

The vector graphics classes may seem a little harder than the traditional Graphics methods at first, but the design is consistent and elegant. Once you get the hang of it, you may find you prefer to use them for all your 2D drawing needs.

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• SSL
• Maps
• Styles
• Cookies
• Sessions
• Data...

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• SSL
• Maps
• Styles
• Cookies
• Sessions
• Data types
• Screen sizes
• Error handling
• Object introduction
• Comparing
• SQLite database integration (CRUD)
• An example of a dynamic blog with login
• …and more

Programs were written with Xojo 2014 r2.1 for Windows, OS X, and Ubuntu (32-bit) operating systems. There are over 290 pages covering 18 chapters and over 70 example programs. The table of contents can be downloaded at the author’s website).

NOTE: This book only covers Xojo API 1. It does not support the newer Web API 2.

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Programming Excel with REAL Studio is a reference and self-paced learning guide that helps you understand the different methods to program Excel by using REALStudio.

It's packed with examples to help the reader understand the code to help readers understand the code.

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This month Dr. Steinman leads you through several patterns.

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This month Dr. Steinman leads you through Class Interfaces in his latest column.

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This series is designed as a continuation of my previous RBLibrary article Beginning Object-Oriented Programming with REALbasic, so I would recommend reading it.

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This series is designed as a continuation of my previous RBLibrary article Beginning Object-Oriented Programming with REALbasic, so I would recommend reading it.

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Just tell us if you create some sorta wierd human deadly organism that like to stomp flat Asian cities and maybe breathes fire, ok?

Updated 2014-09-26

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Topics included in the book:

Text, Chart Fundamentals, Objects, 2D Objects, Graphics, Blurring, Cropping, Gaussian Blur, Building basic controls, Animation, and there are two games with step-by-step code explanations to help you build your own.

What is included with the purchase of this book:

Twelve chapters and over 400 pages of code to build 50 example programs. Create realistic 2D game motion. Example images and the ways to use them in programs.

The table of contents for this book can be viewed at the author's website.

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• Joins
• Thread and Progress Bar
• Transaction
• Alias
• CRUD (Create, Read,...

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• Joins
• Thread and Progress Bar
• Transaction
• Alias
• CRUD (Create, Read, Update, Delete)
• Reports
• Prepared Statements
• … and more.

Tested on Windows and Mac OS desktop applications. There are over 350 pages, greater than 70 example programs which cover more than 15 chapters. Download the table of contents at the author's website to view the book's topics.

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• Unwritten rules
• Comments
• Child sections
• XML Documents
• Reading
• Editing
• Writing
• XQL (XML Query Language)
• XSLT
• CData
• Schema
• SOAP
• …and much more.

There are over 200 pages and 50 example programs which cover 15 chapters. With the exception of DTD on Mac, all examples were tested on Windows 8.1 and Maverick Operating Systems.

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This book is a live document and will be updated. There are many chapters, pages, and examples containing the complete code for: files, text file modification, REAL SQL Database and building a calculator to name a few. Many screenshots have been taken to show you the results of changes in code, with a full index to help you find topics and reference information.

There are 12 chapters and the book contains 175 pages from front-to-back with over 60 example programs to get you started.

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The book is a live document and will likely have updates in the future. Examples include opening recordsets, finding data, sorting, updating data, counting records, printing a report, deleting records, creating new records, and more. Many screenshots have been added to show the results of the code with an index to help find topics quickly.

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Plenty of sample code included in the article and a thorough discussion of the code...

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Plenty of sample code included in the article and a thorough discussion of the code make this article a great read for build iPhone applications using REAL Studio.

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2 know which date '3/4/2007' means. Is it the fourth day of March or the third day of April? Unless you know the intention of whoever created the date string, it's impossible to know.

This article guides you through the creation of a date selection widget to help remove the ambiguity that dates can have.

Downloads for this article are available at: http://www.rbdeveloper.com/browse/5.5/5510/

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Aaron Ballman, a senior software engineer for REAL Software, makers of REALbasic, is a veteran C programmer with over a decade of experience, and a frequent contributor in the REALbasic community. During his seven-year career, he was responsible for the Windows platform layer of the REALbasic framework, as well as language and compiler design for the REALbasic language.

Note the PDF is NOT DRM or encrypted and can be converted to ebook or other formats.

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Dave is the CTO of a K-12 school district and is involved with several software ventures and in this article covers a lot of the ground that any software developer has to think about when deciding to start their own venture.

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This article describes how they accomplished this amusing feat.

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We feature CrystalFontz 633 Serial LCD Modules

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Download this today Worm….uh, I mean, give this one a try, today, ok?

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RB Version Required: Any; 2005+ preferred

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This is an introduction to LDAP and uses the source code availabe separately.

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As usual, the answer is 'No.' REALbasic's design philosophy is to build the common functionality right into the product, but to provide all the hooks advanced users need to do advanced things. Deforming a mesh falls into the category of advanced things, but as you'll see here, you can do this in REALbasic while still working with standard RB classes and controls.

Great stuff here, and an enjoyable read.

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This is a really in depth article, Joe knows of what he speaks, let him show you how to do the whole 1st Person Shooter thing.

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Grabs the bits while the grabbing is good, because we could run out at any time!

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Most developers have considered localization for their projects. REALbasic makes attempts to assist in the process, but managing multiple builds can be difficult. Thom McGrath lays out the whys and hows to make this complex chore an easy burden. See for yourself how easy...

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Most developers have considered localization for their projects. REALbasic makes attempts to assist in the process, but managing multiple builds can be difficult. Thom McGrath lays out the whys and hows to make this complex chore an easy burden. See for yourself how easy it can be to add the world to your program.

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Variable handling parallels PHP's GET, POST, COOKIE, and REQUEST autoglobals, and includes the abilities to buffer output and easily set...

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Variable handling parallels PHP's GET, POST, COOKIE, and REQUEST autoglobals, and includes the abilities to buffer output and easily set header elements.

Not only does Inline HTTP serve web pages, but it handles cookies, multi-part forms, and file uploads, giving you a lightweight yet feature-rich server that you can leverage to your customers' advantage.

Changes in 1.1

• Added 'Content-disposition: attachment' to SendFile, showing client the filename being sent

• Added outbound buffer for the writing of files, making file transfers more practical

• Added support for multi-type forms

• Added FILE, FILENAMES access

• Content-Type header is only sent when ContentType is not null

• Fixed bug with COOKIE methods that caused NilObjectException

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'To the casual computer user, a serial number is a string of letters and numbers that — through some small miracle — determines whether you can or cannot install a particular piece of software. To the seasoned software engineer, it is the combination of elegant discrete mathematics and...

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'To the casual computer user, a serial number is a string of letters and numbers that — through some small miracle — determines whether you can or cannot install a particular piece of software. To the seasoned software engineer, it is the combination of elegant discrete mathematics and a variety of computer science disciplines. To you, the REALbasic developer and potential software magnate, it should be a component of your arsenal that acts as a sufficient barrier for the protection of your software assets…'

And then in clear and understandable language shows you how, in fascinating detail, to build serial number protection into your REALbasic program.

Anyone who is interested in stopping casual theft, through hard core pirates, dead in thier tracks ought to get this article. Download it today.

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The new operators are: And, Or, Xor and Not (crazy names, eh?) and you'd use them exactly how you'd expect. Foo...

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The new operators are: And, Or, Xor and Not (crazy names, eh?) and you'd use them exactly how you'd expect. Foo And Bar, Not Wahoo And (Yippee XOr Kiyay), etc.

And is the new version of BitwiseAnd/Bitwise. BitAnd

Or is the new version of BitwiseOr/Bitwise. BitOr

XOr is the new version of BitwiseXOr/Bitwise. BitXOr

Not is the new version of Bitwise. OnesComplement

I should also note that XOr has become a logical (boolean) operator as well, and would behave as you'd expect when using true and false instead of integer values. Learn more, download today!

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Mark Nutter's RegEx Explained is a great introduction to the use of Regular Expressions in REALbasic.

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Every N00b needs a hand to hold and Adam extends his for you. Linux can be scary and frought with danger, especially if...

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Every N00b needs a hand to hold and Adam extends his for you. Linux can be scary and frought with danger, especially if you are coming from the Windows world, but this article acts as your guide in the dark jungle of linux-land.

Good stuff, highly recommended. Even the non-n00bs amongst us got something out of it.

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This is a must read article for any REALbasic programmer, and last I looked, that would include you, so download it today!

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Have your program shooting all over the screen, explosions everywhere, alarms ringing, women screaming! Download this amazing entree into the world of ballistic sprites today! Bytes are running low, gets your while you can!

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Now the description from Paul himself:

"Unravel the esoteric delights of the little-used, but enormously useful RBScript class. Create cross-platform methods for scripting your application and turn your end-users into advocates, ace programmers, or small furry animals. Find out how to create plugins for your application without going bald trying to get the REAL Software guys to implement compiled libraries."

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Localazation, Globalazation, Accesibility, Documentation, Security, Compatiability, Upgradability and that all important Chrome. All included in this great text for everyone from...

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Localazation, Globalazation, Accesibility, Documentation, Security, Compatiability, Upgradability and that all important Chrome. All included in this great text for everyone from the n00bie just starting out to the seasoned professional.

Give it a download.

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However, REALbasic shares these opportunities with older languages, including scripting languages such...

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However, REALbasic shares these opportunities with older languages, including scripting languages such as Perl and Python. For anyone used to working in those languages, there's still something missing from the REALbasic tool set. You can create a Python script as a simple text file, set the executable bit on it, and then simply invoke it from the command line (or web page, or whatever). There is no compiling and no building; the operating system simply treats the text file like a program and runs it. Why can't you do the same thing in REALbasic?

As it turns out, you can. This article will show you how.

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You want to learn it, Aaron wants to teach it, buy it today and see how easy it can be.

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(To feel the magic, hit the add to cart button!)

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Computers, on the other hand, have no such natural ability. Yet it's quite likely that sooner or later you'll have to program a computer to solve this exact problem, or one very much like it. These path-finding problems turn up in nearly every modern type of computer game, whether it's finding a route through a deadly minefield or simply navigating from one room to another. If computer games aren't your thing, keep reading anyway; it turns out that a great variety of other problems, which seem quite dissimilar on the surface, can be addressed with the very same techniques.

Oh, and please, don't stick compasses in your eyes, ok?

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In this article, we'll get started with a basic Quartz Composer overview and then we'll look at how to create a basic Quartz Composer project. Finally, we'll use that project in a REALbasic project to do something useful, and dare we say, fun.

Full source code included, Download it right now, we may run out of bits!

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This is a classic example of Newton's Law of Cooling...

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This is a classic example of Newton's Law of Cooling which states that the rate of temperature change of an object is proportional to the temperature difference between the object and its surroundings. In other words, as our cup of coffee nears room temperature, its change in temperature slows down. If we are to plot our coffee temperature with respect to time, the resulting plot will not be a straight line.

So how do we create a computer model of the coffee's change in temperature? This article will step by step, lead you through that fascinating problem. And amazingly, in the end, you will understand what was going on. Never look at a cup of coffee the same way again!

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But what if you want to see if only the left or right Shift key is down, or check the status of an arbitrary key on the keyboard? This kind of thing can get tricky if you want your code to run on any operating system, or even on different keyboard layouts within a single operating system.

In this article, we'll devise code that we can drop into any project to access the keyboard easily, efficiently, and asynchronously, in a platform-neutral way. How cool is that?

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I could even tell you how concise and easy to follow it is, it is, but I won't.

I will tell you that once you are done with this article, you will have...

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I could even tell you how concise and easy to follow it is, it is, but I won't.

I will tell you that once you are done with this article, you will have a firm understanding of how to write your own server application in REALbasic. Whether you want to integrate a server into a game, or you want to accept information on the net, this is that article for you. It is clear, concise and suprisingly, calorie free!

Download it today and rejoice!

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Aaron takes you from the begining, explaing all of the details of networking, on both a Mac and Windows platform (and for good measure throws in Linux!) How do you connect to a remote machine? How do you set up a local machine...

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Aaron takes you from the begining, explaing all of the details of networking, on both a Mac and Windows platform (and for good measure throws in Linux!) How do you connect to a remote machine? How do you set up a local machine to listen? This is childs play once Aaron gets done with you. Sending files to a remote machine? Like taking candy from a disarmed baby! This is the networking ground floor, but with lots of cool examples to get you up and communicating in no time. Download this one today!

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(or How To Protect Your Program In Three Easy Steps)

You've just finished developing your best application ever. It took you months of coding. The beta tests went without a hitch and you are now ready to release the software into the world and make your fortune. Suddenly,...

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(or How To Protect Your Program In Three Easy Steps)

You've just finished developing your best application ever. It took you months of coding. The beta tests went without a hitch and you are now ready to release the software into the world and make your fortune. Suddenly, you realize that you don't have a way to prevent people from just copying the program without paying. Shazzam! Enter Creating a Registration Algorithm, everything you need to know to protect your valuable program. Download it today!

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