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# Qtopia Core Classes

These classes are relevant to Qtopia Core users.

QWSServer::KeyboardFilter | Base class for global keyboard event filters
QCopChannel | Communication capabilities between clients
QCustomRasterPaintDevice | Enables acceleration of painting operations using the available hardware
QDecoration | Base class for window decorations in Qtopia Core
QDecorationFactory | Creates window decorations in Qtopia Core
QDecorationPlugin | Abstract base class for window decoration plugins
QDirectPainter | Direct access to the underlying hardware
QKbdDriverFactory | Creates keyboard drivers in Qtopia Core
QKbdDriverPlugin | Abstract base class for keyboard driver plugins
QMouseDriverFactory | Creates mouse drivers in Qtopia Core
QMouseDriverPlugin | Abstract base class for mouse driver plugins
QRasterPaintEngine | Enables acceleration of painting operations using the available hardware
QScreen | Base class for screen drivers in Qtopia Core
QScreenCursor | Manages the screen cursor
QScreenDriverFactory | Creates screen drivers in Qtopia Core
QScreenDriverPlugin | Abstract base class for screen driver plugins
QWSCalibratedMouseHandler | Implements a mouse driver providing calibration and noise reduction
QWSClient | Encapsulates a client process in Qtopia Core
QWSEmbedWidget | Enabels embedded top-level widgets in Qtopia Core
QWSEvent | Encapsulates an event in Qtopia Core
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 data used in calibration of a mouse handler
QWSScreenSaver | Base class for screensavers in Qtopia Core
QWSServer | Server-specific functionality in Qtopia Core
QWSWindow | Encapsulates a top-level window in Qtopia Core
QWSWindowSurface | The drawing area for top-level windows in Qtopia Core