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<td >Qt 5.9</td><td ><a href="qthelp-index.html">Qt Help</a></td><td >Help System</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.5 Reference Documentation</td>
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<h1 class="title">Help System</h1>
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<div class="descr"> <a name="details"></a>
<p>These classes provide for all forms of online-help in your application, with three levels of detail:</p>
<ol class="1" type="1"><li>Tool Tips and Status Bar message - flyweight help, extremely brief, entirely integrated in the user interface, requiring little or no user interaction to invoke.</li>
<li>What's This? - lightweight, but can be a three-paragraph explanation.</li>
<li>Online Help - can encompass any amount of information, but is typically slower to call up, somewhat separated from the user's work, and often users feel that using online help is a digression from their real task.</li>
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<tr class="odd topAlign"><td class="tblName"><p><a href="../qtwidgets/qtooltip.html">QToolTip</a></p></td><td class="tblDescr"><p>Tool tips (balloon help) for any widget</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="../qtwidgets/qwhatsthis.html">QWhatsThis</a></p></td><td class="tblDescr"><p>Simple description of any widget, i.e. answering the question "What's This?"</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="../qtwidgets/qstatusbar.html">QStatusBar</a></p></td><td class="tblDescr"><p>Horizontal bar suitable for presenting status information</p></td></tr>
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