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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- /home/reggie/tmp/qt-3.0-reggie-5401/qt-x11-commercial-3.0.5/doc/indices.doc:665 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Help System</title><style type="text/css"><!--h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }a:link { color: #004faf; text-decoration: none }a:visited { color: #672967; text-decoration: none }body { background: #ffffff; color: black; }--></style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr bgcolor="#E5E5E5"><td 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="annotated.html"><font color="#004faf">Annotated</font></a> | <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"><font color="#004faf">Functions</font></a></td><td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Help System</h1> <p> <!-- index online help --><a name="online-help"></a><p> <!-- index help system --><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 littleor no user interaction to invoke.<li> What's This? - lightweight, but can bea three-paragraph explanation.<li> Online Help - can encompass any amount of information,but is typically slower to call up, somewhat separatedfrom the user's work, and often users feel that using onlinehelp is a digression from their real task.</ol><p> <p><table width="100%"><tr bgcolor=#f0f0f0><td><b><a href="qstatusbar.html">QStatusBar</a></b><td>Horizontal bar suitable for presenting status information<tr bgcolor=#f0f0f0><td><b><a href="qstylesheet.html">QStyleSheet</a></b><td>Collection of styles for rich text rendering and a generator of tags<tr bgcolor=#f0f0f0><td><b><a href="qtextbrowser.html">QTextBrowser</a></b><td>Rich text browser with hypertext navigation<tr bgcolor=#f0f0f0><td><b><a href="qtooltip.html">QToolTip</a></b><td>Tool tips (balloon help) for any widget or rectangular part of a widget<tr bgcolor=#f0f0f0><td><b><a href="qtooltipgroup.html">QToolTipGroup</a></b><td>Collects tool tips into related groups<tr bgcolor=#f0f0f0><td><b><a href="qwhatsthis.html">QWhatsThis</a></b><td>Simple description of any widget, i.e. answering the question "What's this?"</table><!-- eof --><p><address><hr><div align=center><table width=100% cellspacing=0 border=0><tr><td>Copyright © 2002 <a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a><td align=right><div align=right>Qt version 3.0.5</div></table></div></address></body></html>⌨️ 快捷键说明
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