The QLabel widget provides a text or image display.| doc.qt.io
The QBitmap class provides monochrome (1-bit depth) pixmaps.| doc.qt.io
The QBrush class defines the fill pattern of shapes drawn by QPainter.| doc.qt.io
The QDate class provides date functions.| 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 QOpenGLContext class represents a native OpenGL context, enabling OpenGL rendering on a QSurface.| doc.qt.io
The QMetaType class manages named types in the meta-object system.| doc.qt.io
The QImage class provides a hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device.| 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 QEvent class is the base class of all event classes. Event objects contain event parameters.| doc.qt.io
Describes the support for HTML markup in text widgets.| doc.qt.io
The QFont class specifies a query for a font used for drawing text.| 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 QDateTime class provides date and time functions.| doc.qt.io
The QApplication class manages the GUI application's control flow and main settings.| doc.qt.io
The Qt namespace contains miscellaneous identifiers used throughout the Qt library.| doc.qt.io
The QPixmap class is an off-screen image representation that can be used as a paint device.| doc.qt.io
The QPen class defines how a QPainter should draw lines and outlines of shapes.| doc.qt.io
The QPainter class performs low-level painting on widgets and other paint devices.| doc.qt.io
The QLayout class is the base class of geometry managers.| doc.qt.io
The QWindow class represents a window in the underlying windowing system.| doc.qt.io
The QVariant class acts like a union for the most common Qt data types.| doc.qt.io
The QTextDocument class holds formatted text.| doc.qt.io
A basic visual QML type.| doc.qt.io
The QRegularExpression class provides pattern matching using regular expressions.| doc.qt.io
The QByteArray class provides an array of bytes.| doc.qt.io
Managing application permissions| doc.qt.io
The QTimer class provides repetitive and single-shot timers.| doc.qt.io
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
This document specifies a syntax for text messages that are sent between computer users, within the framework of "electronic mail" messages. [STANDARDS-TRACK]| IETF Datatracker