GTK3 Interface
From Free Pascal wiki
This article applies to GTK+ Widgetsets only.
See also: Multiplatform Programming Guide
GTK3 interface
Started as of Lazarus 1.1 r41811
Currently it's in alpha status, and if you want to test it, you must uncomment the USEGTK3ALPHA define in lcl/interfaces/gtk3/gtk3defines.inc.
MINIMUM REQUIREMENTS
- Gtk3 v 3.6.4
Current bindings (12.01.2021) are 3.8.6 and there's a plan to move it to 3.22
- glib2 2.34
- cairo 1.10
- pango 1.30