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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Qt/Embedded Pointer Handling</h1>

 
Pointer handling in Qt/Embedded works for any mouse or mouse-like
device such as touchpanels and trackballs.
<p> Usually only one pointer device is supported in an embedded device,
but for demonstration purposes, Qt/Embedded includes a large number of
supported devices.
<p> <h2> Mouse Protocols
</h2>
<a name="1"></a><p> Mouse drivers can be enabled/disabled via the configure script.  Running
./configure -help lists the available mouse drivers.  Only the
"pc" mouse driver is enabled in the default configuration.
<p> Provided the "pc" mouse driver is enabled, Qt/Embedded auto-detects the
mouse type and device if it is one of
the supported types on <tt>/dev/psaux</tt> or one of the <tt>/dev/ttyS?</tt>
serial lines. If multiple mice are detected, all may be used simultaneously.
<p> Alternatively, you may set the environment variable <tt>QWS_MOUSE_PROTO</tt>
to determine which mouse to use. This environment variable may be set
to:
<blockquote>
<em>&lt;protocol&gt;</em><tt>:</tt><em>&lt;device&gt;</em>
</blockquote>
where <em>&lt;protocol&gt;</em> is one of:
<ul>
<li> MouseMan
<li> IntelliMouse
<li> Microsoft
</ul>
and <em>&lt;device&gt;</em> is the mouse device, often <tt>/dev/mouse</tt>. If no
such variable is specified, the built-in default is <tt>Auto</tt>, which
enables auto-detection of the mouse protocol and device.
<p> To add another protocol, new subclasses of <a href="qwsmousehandler.html">QWSMouseHandler</a> and
<a href="qmousedriverplugin.html">QMouseDriverPlugin</a> can be written and installed as plugins.
<p> <h2> Touch Panels
</h2>
<a name="2"></a><p> Qt/Embedded ships with support for the NEC Vr41XX touchpanel and the
emerging linux touchpanel standard used by the iPAQ and Zaurus. These
are subclasses of QWSCalibratedMouseHandler which is in turn a subclass
of QWSMouseHandler in <tt>embedded/qmouse_qws.cpp</tt>.

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