The Qt Core Module

Qt 4 is a library consisting of smaller libraries, or modules. The most popular ones are

Except for core, modules need to be "enabled" in qmake project files in order to be used. For example:

QT += xml # to use the xml module QT += gui # to use QWidgets QT += sql # to use SQL module

The following section will introduce some of the core library classes.

Категории