<?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/examples/activeqt/hierarchy.qdoc --> <head> <title>Qt 4.2: Qt Widget Hierarchy</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">Qt Widget Hierarchy<br /><small></small></h1> <script language="javascript"> function createSubWidget( form ) { ParentWidget.createSubWidget( form.nameEdit.value ); } function renameSubWidget( form ) { var SubWidget = ParentWidget.subWidget( form.nameEdit.value ); if ( !SubWidget ) { alert( "No such widget " + form.nameEdit.value + "!" ); return; } SubWidget.label = form.labelEdit.value; form.nameEdit.value = SubWidget.label; } function setFont( form ) { ParentWidget.font = form.fontEdit.value; } </script> <p> This widget can have many children! </p> <object ID="ParentWidget" CLASSID="CLSID:d574a747-8016-46db-a07c-b2b4854ee75c" CODEBASE="http://www.trolltech.com/demos/hierarchy.cab"> [Object not available! Did you forget to build and register the server?] </object><br /> <form> <input type="edit" ID="nameEdit" value="<enter object name>" /> <input type="button" value="Create" onClick="createSubWidget(this.form)" /> <input type="edit" ID="labelEdit" /> <input type="button" value="Rename" onClick="renameSubWidget(this.form)" /> <br /> <input type="edit" ID="fontEdit" value="MS Sans Serif" /> <input type="button" value = "Set Font" onClick="setFont(this.form)" /> </form> <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>