Windows (Visual Studio)
Windows (CodeBlocks)
macOS (Xcode)
Linux (also BSD and Raspberry Pi)
Android (SFML)
Android (SDL)
iOS
Building TGUI from source code with CMake
Selecting backend in CMake
SFML backend
SDL backend
Creating, copying and removing widgets
Basic widget functions
Signals (event callbacks)
Strings
Layouts
Renderers
Using themes/skins
Switching between menu screens / forms
Show/Hide animations
Tool Tips
HorizontalLayout and VerticalLayout
Changing mouse cursor
Creating your own themes
Creating your own widgets
Loading from zip file
Merging themes at runtime
Make sure to also look at the documentation and examples.