Qt GUI C++ Classes

The Qt GUI module provides the basic enablers for graphical applications written with Qt. More...

Classes

QPaintDevice

The base class of objects that can be painted on with QPainter

QRgba64

Struct contains a 64-bit RGB color

Detailed Description

The Qt GUI module provides classes for windowing system integration, event handling, OpenGL and OpenGL ES integration, Vulkan integration, 2D graphics, imaging, fonts and typography. These classes are used internally by Qt's user interface technologies and can also be used directly, for instance to write applications using low-level OpenGL ES graphics APIs.

To include the definitions of the module's classes, use the following directive:


  #include <QtGui>

If you use qmake to build your projects, Qt GUI is included by default. To disable Qt GUI, add the following line to your .pro file:


  QT -= gui