source: trunk/doc/src/emb-pointer.qdoc@ 357

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/*!
    \page qt-embedded-pointer.html

    \title Qt for Embedded Linux Pointer Handling
    \ingroup qt-embedded-linux

    When running a \l{Qt for Embedded Linux} application, it either runs as a
    server or connects to an existing server. The mouse driver is
    loaded by the server application when it starts running, using
    Qt's \l {How to Create Qt Plugins}{plugin system}.

    Internally in the client/server protocol, all system generated
    events, including pointer events, are passed to the server
    application which then propagates the event to the appropriate
    client. Note that pointer handling in \l{Qt for Embedded Linux} works for
    both mouse and mouse-like devices such as touch panels and
    trackballs.

    Contents:

    \tableofcontents

    \section1 Available Drivers

    \l{Qt for Embedded Linux} provides ready-made drivers for the MouseMan,
    IntelliMouse, Microsoft, NEC Vr41XX, Linux Touch Panel and Yopy
    protocols as well as the universal touch screen library,
    tslib. Run the \c configure script to list the available drivers:

    \if defined(QTOPIA_PHONE)

        \snippet doc/src/snippets/code/doc_src_emb-pointer.qdoc 0

        \bold{Note:} By default only the PC mouse driver is enabled.

        The various drivers can be enabled and disabled using the \c
        configure script. For example:

        \snippet doc/src/snippets/code/doc_src_emb-pointer.qdoc 1

    \else

        \snippet doc/src/snippets/code/doc_src_emb-pointer.qdoc 2

        In the default Qt configuration, only the "pc" mouse driver is
        enabled. The various drivers can be enabled and disabled using
        the \c configure script. For example:

        \snippet doc/src/snippets/code/doc_src_emb-pointer.qdoc 3
    \endif

    Custom mouse drivers can be implemented by subclassing the
    QWSMouseHandler class and creating a mouse driver plugin (derived
    from the QMouseDriverPlugin class). The default implementation of the
    QMouseDriverFactory class will automatically detect the plugin,
    loading the driver into the server application at run-time.

    If you are creating a driver for a device that needs calibration
    or noise reduction, such as a touchscreen, derive from the
    QWSCalibratedMouseHandler subclass instead to take advantage of
    its calibration functionality.

    \if defined(QTOPIA_PHONE)
        For a tutorial on how to add a new keyboard driver plug-in
        see: \l {Tutorial: Implementing a Device Plug-in}.
    \endif

    \section1 Specifying a Driver