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 QThread class provides a platform-independent way to manage threads.| doc.qt.io
The Qt namespace contains miscellaneous identifiers used throughout the Qt library.| doc.qt.io
The QString class provides a Unicode character string.| doc.qt.io