The QLCDNumber widget displays a number with LCD-like digits.| doc.qt.io
The QStyleOption class stores the parameters used by QStyle functions.| doc.qt.io
The QMenu class provides a menu widget for use in menu bars, context menus, and other popup menus.| doc.qt.io
The QAbstractScrollArea widget provides a scrolling area with on-demand scroll bars.| doc.qt.io
The QPalette class contains color groups for each widget state.| doc.qt.io
The QFrame class is the base class of widgets that can have a frame.| doc.qt.io
The QLabel widget provides a text or image display.| doc.qt.io
The QStyle class is an abstract base class that encapsulates the look and feel of a GUI.| doc.qt.io
The QSize class defines the size of a two-dimensional object using integer point precision.| 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 QWidget class is the base class of all user interface objects.| doc.qt.io
The QEvent class is the base class of all event classes. Event objects contain event parameters.| doc.qt.io
The Qt namespace contains miscellaneous identifiers used throughout the Qt library.| doc.qt.io