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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">QWSMouseHandler Class Reference</h1>

<p>The QWSMouseHandler class is a mouse driver for Qt/Embedded. <a href="#details">More...</a></p>

<pre>#include <QWSMouseHandler></pre><p>Part of the <a href="qtgui.html">QtGui</a> module.</p>

<ul>

<li><a href="qwsmousehandler-members.html">List of all members, including inherited members</a></li>

</ul>

<h3>Public Functions</h3>

<ul>

<li><div class="fn"/><b><a href="qwsmousehandler.html#QWSMouseHandler">QWSMouseHandler</a></b> ( const QString & <i>driver</i> = QString(), const QString & <i>device</i> = QString() )</li>

<li><div class="fn"/>virtual <b><a href="qwsmousehandler.html#dtor.QWSMouseHandler">~QWSMouseHandler</a></b> ()</li>

<li><div class="fn"/>virtual void <b><a href="qwsmousehandler.html#calibrate">calibrate</a></b> ( const QWSPointerCalibrationData * <i>data</i> )</li>

<li><div class="fn"/>virtual void <b><a href="qwsmousehandler.html#clearCalibration">clearCalibration</a></b> ()</li>

<li><div class="fn"/>void <b><a href="qwsmousehandler.html#limitToScreen">limitToScreen</a></b> ( QPoint & <i>pt</i> )</li>

<li><div class="fn"/>void <b><a href="qwsmousehandler.html#mouseChanged">mouseChanged</a></b> ( const QPoint & <i>pos</i>, int <i>bstate</i>, int <i>wheel</i> = 0 )</li>

<li><div class="fn"/>const QPoint & <b><a href="qwsmousehandler.html#pos">pos</a></b> () const</li>

<li><div class="fn"/>virtual void <b><a href="qwsmousehandler.html#resume">resume</a></b> () = 0</li>

<li><div class="fn"/>virtual void <b><a href="qwsmousehandler.html#suspend">suspend</a></b> () = 0</li>

</ul>

<hr />

<h2>Detailed Description</h2>

<p>The QWSMouseHandler class is a mouse driver for Qt/Embedded.</p>

<p>The mouse driver handles events from system devices and generates mouse events.</p>

<p>A QWSMouseHandler will usually open some system device in its constructor, create a <a href="qsocketnotifier.html">QSocketNotifier</a> on that opened device and when it receives data, it will call <a href="qwsmousehandler.html#mouseChanged">mouseChanged</a>() to send the event to Qt/Embedded for relaying to clients.</p>

<hr />

<h2>Member Function Documentation</h2>

<h3 class="fn"><a name="QWSMouseHandler"></a>QWSMouseHandler::QWSMouseHandler ( const <a href="qstring.html">QString</a> & <i>driver</i> = QString(), const <a href="qstring.html">QString</a> & <i>device</i> = QString() )</h3>

<p>Constructs a mouse handler. This becomes the primary mouse handler.</p>

<p>Note that once created, mouse handlers are controlled by the system and should not be deleted.</p>

<p>The <i>driver</i> and <i>device</i> arguments are not used by this base class.</p>

<h3 class="fn"><a name="dtor.QWSMouseHandler"></a>QWSMouseHandler::~QWSMouseHandler ()  <tt> [virtual]</tt></h3>

<p>Destroys the mouse handler. You should not call this directly.</p>

<h3 class="fn"><a name="calibrate"></a>void QWSMouseHandler::calibrate ( const <a href="qwspointercalibrationdata.html">QWSPointerCalibrationData</a> * <i>data</i> )  <tt> [virtual]</tt></h3>

<p>This method is reimplemented in the calibrated mouse handler to set calibration information passed in <i>data</i>, for example, from the Qtopia calibration screen. This version does nothing.</p>

<h3 class="fn"><a name="clearCalibration"></a>void QWSMouseHandler::clearCalibration ()  <tt> [virtual]</tt></h3>

<p>This method is reimplemented in the calibrated mouse handler to clear calibration information. This version does nothing.</p>

<h3 class="fn"><a name="limitToScreen"></a>void QWSMouseHandler::limitToScreen ( <a href="qpoint.html">QPoint</a> & <i>pt</i> )</h3>

<p>Ensures that the given point, <i>pt</i> is within the screen's boundaries, changing <i>pt</i> if necessary.</p>

<h3 class="fn"><a name="mouseChanged"></a>void QWSMouseHandler::mouseChanged ( const <a href="qpoint.html">QPoint</a> & <i>pos</i>, int <i>bstate</i>, int <i>wheel</i> = 0 )</h3>

<p>When a mouse event occurs this function is called with the mouse's position in <i>pos</i>, the state of its buttons in <i>bstate</i>, and the wheel motion in <i>wheel</i>.</p>

<h3 class="fn"><a name="pos"></a>const <a href="qpoint.html">QPoint</a> & QWSMouseHandler::pos () const</h3>

<p>Returns the mouse position.</p>

<h3 class="fn"><a name="resume"></a>void QWSMouseHandler::resume ()  <tt> [pure virtual]</tt></h3>

<p>Must be implemented in subclasses to resume handling mouse events.</p>

<p>See also <a href="qwsmousehandler.html#suspend">suspend</a>().</p>

<h3 class="fn"><a name="suspend"></a>void QWSMouseHandler::suspend ()  <tt> [pure virtual]</tt></h3>

<p>Must be implemented in subclasses to suspend reading and handling of mouse events.</p>

<p>See also <a href="qwsmousehandler.html#resume">resume</a>().</p>

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