The QStyleOption class stores the parameters used by QStyle functions.| doc.qt.io
The QPalette class contains color groups for each widget state.| doc.qt.io
The QFontMetrics class provides font metrics information.| doc.qt.io
The QStyle class is an abstract base class that encapsulates the look and feel of a GUI.| doc.qt.io
The QRect class defines a rectangle in the plane using integer precision.| doc.qt.io
The QPaintEvent class contains event parameters for paint events.| doc.qt.io
The QColor class provides colors based on RGB, HSV or CMYK values.| doc.qt.io
The QWidget class is the base class of all user interface objects.| doc.qt.io
The QObject class is the base class of all Qt objects.| doc.qt.io
The Qt namespace contains miscellaneous identifiers used throughout the Qt library.| doc.qt.io
The QPainter class performs low-level painting on widgets and other paint devices.| doc.qt.io
Reference counting for fast copying.| doc.qt.io
The QQuickItem class provides the most basic of all visual items in Qt Quick.| doc.qt.io
The QString class provides a Unicode character string.| doc.qt.io