The QMetaObject class contains meta-information about Qt objects.| doc.qt.io
The QObject class is the base class of all Qt objects.| doc.qt.io
The QIcon class provides scalable icons in different modes and states.| doc.qt.io
The QAction class provides an abstraction for user commands that can be added to different user interface components.| doc.qt.io
The QLocale class converts between numbers and their string representations in various languages.| doc.qt.io
The QList class is a template class that provides a dynamic array.| doc.qt.io
The QVariant class acts like a union for the most common Qt data types.| doc.qt.io
KDE products API documentation| api.kde.org
The QString class provides a Unicode character string.| doc.qt.io
The QGuiApplication class manages the GUI application's control flow and main settings.| doc.qt.io
The QCoreApplication class provides an event loop for Qt applications without UI.| doc.qt.io