<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <!-- /tmp/qt-4.2.1-harald-1161357942206/qt-x11-opensource-src-4.2.1/doc/src/groups.qdoc --> <head> <title>Qt 4.2: Help System</title> <link href="classic.css" rel="stylesheet" type="text/css" /> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td align="left" valign="top" width="32"><a href="http://www.trolltech.com/products/qt"><img src="images/qt-logo.png" align="left" width="32" height="32" border="0" /></a></td> <td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> · <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a> · <a href="functions.html"><font color="#004faf">Functions</font></a></td> <td align="right" valign="top" width="230"><a href="http://www.trolltech.com"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></a></td></tr></table><h1 align="center">Help System<br /><small></small></h1> <a name="help-system"></a><p>These classes provide for all forms of online-help in your application, with three levels of detail:</p> <ol 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> </ol> <p><table width="100%" class="annotated"> <tr valign="top" class="odd"><th><a href="qassistantclient.html">QAssistantClient</a></th><td>Means of using Qt Assistant as an application's help tool</td></tr> <tr valign="top" class="even"><th><a href="qhelpevent.html">QHelpEvent</a></th><td>Event that is used to request helpful information about a particular point in a widget</td></tr> <tr valign="top" class="odd"><th><a href="qstatusbar.html">QStatusBar</a></th><td>Horizontal bar suitable for presenting status information</td></tr> <tr valign="top" class="even"><th><a href="qstatustipevent.html">QStatusTipEvent</a></th><td>Event that is used to show messages in a status bar</td></tr> <tr valign="top" class="odd"><th><a href="qtooltip.html">QToolTip</a></th><td>Tooltips (balloon help) for any widget</td></tr> <tr valign="top" class="even"><th><a href="qwhatsthis.html">QWhatsThis</a></th><td>Simple description of any widget, i.e. answering the question "What's This?"</td></tr> <tr valign="top" class="odd"><th><a href="qwhatsthisclickedevent.html">QWhatsThisClickedEvent</a></th><td>Event that can be used to handle hyperlinks in a "What's This?" text</td></tr> </table></p> <p /><address><hr /><div align="center"> <table width="100%" cellspacing="0" border="0"><tr class="address"> <td width="30%">Copyright © 2006 <a href="trolltech.html">Trolltech</a></td> <td width="40%" align="center"><a href="trademarks.html">Trademarks</a></td> <td width="30%" align="right"><div align="right">Qt 4.2.1</div></td> </tr></table></div></address></body> </html>