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# Qtopia Core Classes

These classes are relevant to Qtopia Core users.

QWSServer::KeyboardFilter | Base class for global keyboard event filters in Qtopia Core
QAbstractFontEngine | The base class for font engine plugins in Qtopia Core
QCopChannel | Communication capabilities between clients in Qtopia Core
QCustomRasterPaintDevice | Provided to activate hardware accelerated paint engines in Qtopia Core
QDecoration | Base class for window decorations in Qtopia Core
QDecorationFactory | Creates window decorations in Qtopia Core
QDecorationPlugin | Abstract base class for window decoration plugins in Qtopia Core
QDirectPainter | Direct access to the underlying hardware in Qtopia Core
QFontEngineInfo | Describes a specific font provided by a font engine plugin
QFontEnginePlugin | The base class for font engine factory plugins in Qtopia Core
QKbdDriverFactory | Creates keyboard drivers in Qtopia Core
QKbdDriverPlugin | Abstract base class for keyboard driver plugins in Qtopia Core
QMouseDriverFactory | Creates mouse drivers in Qtopia Core
QMouseDriverPlugin | Abstract base class for mouse driver plugins in Qtopia Core
QRasterPaintEngine | Enables hardware acceleration of painting operations in Qtopia Core
QScreen | Base class for screen drivers in Qtopia Core
QScreenCursor | Base class for screen cursors in Qtopia Core
QScreenDriverFactory | Creates screen drivers in Qtopia Core
QScreenDriverPlugin | Abstract base class for screen driver plugins in Qtopia Core
QWSCalibratedMouseHandler | Mouse calibration and noise reduction in Qtopia Core
QWSClient | Encapsulates a client process in Qtopia Core
QWSEmbedWidget | Enabels embedded top-level widgets in Qtopia Core
QWSEvent | Encapsulates an event in Qtopia Core
QWSGLWindowSurface | The drawing area for top-level windows in Qtopia Core on EGL/OpenGLES. It also provides the drawing area for QGLWidgets whether they are top-level windows or child widget of another QWidget
QWSInputMethod | International input methods in Qtopia Core
QWSKeyboardHandler | Base class for keyboard drivers in Qtopia Core
QWSMouseHandler | Base class for mouse drivers in Qtopia Core
QWSPointerCalibrationData | Container for mouse calibration data in Qtopia Core
QWSScreenSaver | Base class for screensavers in Qtopia Core
QWSServer | Encapsulates a server process in Qtopia Core
QWSWindow | Encapsulates a top-level window in Qtopia Core