Qt's Modules

Qt 4 consists of several modules, each of which lives in a separate library.

Modules for general software development:

Modules for working with Qt's tools:

The following extension modules are available in the Qt Commercial Editions on Windows:

The following extension module is available in all Qt Editions on Unix platforms:

If you use qmake to build your projects, the QtCore and QtGui modules are included by default. To link only against QtCore, add the following line to your .pro file:

 QT -= gui

On Windows, if you do not use qmake, the Visual Studio Integration available to commercial licensees, or other build tools such as CMake, you also need to link against the qtmain library.

See also Qt's Classes.

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