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# Qtopia Core Classes

These classes are relevant to Qtopia Core users.

QWSServer::KeyboardFilter | Global keyboard event filter
QCopChannel | Communication capabilities between clients
QCustomRasterPaintDevice | Enables acceleration of painting operations using the available hardware
QDecoration | Allows the appearance of top level windows to be customized
QDecorationFactory | Creates QDecoration objects
QDecorationPlugin | Abstract base class for decoration plugins
QDirectPainter | Direct access to the video hardware
QKbdDriverFactory | Creates QWSKeyboardHandler objects
QKbdDriverPlugin | Abstract base class for keyboard driver plugins
QLinuxFbScreen | Implements a screen driver for the Linux framebuffer
QMouseDriverFactory | Creates QWSMouseHandler objects
QMouseDriverPlugin | Abstract base class for mouse driver plugins
QRasterPaintEngine | Enables acceleration of painting operations using the available hardware
QScreen | Base class for implementing screen drivers in Qtopia Core
QScreenCursor | Manages the onscreen mouse cursor
QScreenDriverFactory | Creates QScreen objects
QScreenDriverPlugin | Abstract base class for graphics driver plugins
QTransformedScreen | Implements a screen driver for a transformed screen
QVFbScreen | Implements a screen driver for the virtual framebuffer
QVNCScreen | Implements a screen driver for VNC servers
QWSCalibratedMouseHandler | Implements a mouse driver providing calibration and noise reduction
QWSClient | Encapsulates a client process in Qtopia Core
QWSEvent | Encapsulates an event in Qtopia Core
QWSInputMethod | International input methods in Qtopia Core
QWSKeyboardHandler | Implements a keyboard driver in Qtopia Core
QWSMouseHandler | Implements a mouse driver in Qtopia Core
QWSPointerCalibrationData | Container for data used in calibration of a mouse handler
QWSScreenSaver | Implements a screensaver in Qtopia Core
QWSServer | Server-specific functionality in Qtopia Core
QWSTslibMouseHandler | Implements a mouse driver for the Universal Touch Screen Library, tslib
QWSWindow | Encapsulates a top-level window in Qtopia Core
QWSWindowSurface | The drawing area of a top-level window