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<title>Qt 4.0: QWSServer::KeyboardFilter Class Reference</title>
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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">QWSServer::KeyboardFilter Class Reference</h1>
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<p>The KeyboardFilter class provides a global keyboard event filter. <a href="#details">More...</a></p>
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<pre>#include <QWSServer></pre><p>Part of the <a href="qtgui.html">QtGui</a> module.</p>
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<li><a href="qwsserver-keyboardfilter-members.html">List of all members, including inherited members</a></li>
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<h3>Public Functions</h3>
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<li><div class="fn"/>virtual <b><a href="qwsserver-keyboardfilter.html#dtor.KeyboardFilter">~KeyboardFilter</a></b> ()</li>
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<li><div class="fn"/>virtual bool <b><a href="qwsserver-keyboardfilter.html#filter">filter</a></b> ( int <i>unicode</i>, int <i>keycode</i>, int <i>modifiers</i>, bool <i>isPress</i>, bool <i>autoRepeat</i> ) = 0</li>
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<a name="details"></a>
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<h2>Detailed Description</h2>
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<p>The KeyboardFilter class provides a global keyboard event filter.</p>
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<p>The KeyboardFilter class is used to implement a global, low-level filter on key events in the Qt/Embedded server application; this can be used to implement things like APM (advanced power management) suspend from a button without having to filter for it in all applications.</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn"><a name="dtor.KeyboardFilter"></a>KeyboardFilter::~KeyboardFilter () <tt> [virtual]</tt></h3>
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<p>Destroys the keyboard filter.</p>
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<h3 class="fn"><a name="filter"></a>bool KeyboardFilter::filter ( int <i>unicode</i>, int <i>keycode</i>, int <i>modifiers</i>, bool <i>isPress</i>, bool <i>autoRepeat</i> ) <tt> [pure virtual]</tt></h3>
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<p>Returns true if the specified key should be filtered; otherwise returns false. A true return value stops the key from being processed any further.</p>
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<p>The Unicode value is given in <i>unicode</i> and the key code in <i>keycode</i>. Keyboard modifiers are OR-ed together in <i>modifiers</i>. If <i>isPress</i> is true this is a key press; otherwise it is a key release. If <i>autoRepeat</i> is true this is an auto-repeated key press.</p>
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<p>All normal key events should be blocked while in compose mode.</p>
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