Widgetset
Widgetsets support platform-sensitive development with the Lazarus IDE. They act as adapter libraries that provide an interface between a platform-inpedentent sourcecode written in Free Pascal and platform-specific system functions. Thus they allow for development of platform-native software without requiring to provide specific source code for different target platforms.
![](../I/m/Lazarus_architecture.svg.png)
Interaction of class libraries and widgetsets in Lazarus and Free Pascal
Widgetsets act as basis for the Lazarus Component Library (LCL).
Available widgetsets
Currently (June 2020), the development status of widget toolkit interfaces is roughly as follows:[1]
Widget set | Supported operating systems | Status |
---|---|---|
Windows API, GDI | Windows | Mainstream use |
Windows CE API, GDI | Windows CE | Mainstream use |
GTK+ 1.2.x | Linux (via X11) | Deprecated |
GTK+ 2.8+ | Linux (X11 and framebuffer), Windows, and Mac OS X (via X11) | Mainstream use |
GTK+ 3.x | As Gtk2 | Alpha |
Qt 4.5+, 5.6+[2] | Linux (X11 and framebuffer), Windows, Mac OS X | Mainstream use. Works in Windows, Linux, Mac OS X, Maemo, etc |
Cocoa | Mac OS X | In progress |
Carbon | Mac OS X | Mainstream use |
fpGUI | Windows, Windows CE, Linux (via X11) | Initial stage |
Lazarus Custom Drawn Controls | Android, Windows, Linux (via X11), Mac OS X | Initial stage |
gollark: I'm going to make it record what gets deleted.
gollark: Really should add controls on this.
gollark: ++delete "<@581484526925250570>'s brain"
gollark: I'm adding a command to view all deleted things.
gollark: ++delete "your achievements"
References
Further reading
- Michaël van Canneyt; Florian Klämpfl (2012), Free Pascal (Free Pascal 2 ed.), Computer & Literatur Verlag GmbH, ISBN 978-3936546729, OL 25421359M, 393654672X
- Michaël van Canneyt; Mattias Gärtner; Swen Heinig; Felipe Monteiro de Carvalho; Inoussa Ouedraogo; Jörg Braun (2011), Lazarus, Böblingen, Germany: Computer & Literatur Verlag GmbH, OL 25426539M
- Michaël van Canneyt; Mathias Gärtner; Swen Heinig; Felipe Monteiro de Carvalho; Inoussa Ouedraogo (2011), Lazarus - the complete guide, Blaise Pascal Magazine, OL 25427992M
- Roderick Person (2013), Getting Started with Lazarus IDE, Packt Publishing, ISBN 978-1782163404, OL 25426631M, 1782163409
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