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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html> <head> <title> GtkObject </title> <meta name="GENERATOR" content= "Modular DocBook HTML Stylesheet Version 1.45"> <link rel="HOME" title="GTK+ / Gnome Application Development" href="ggad.html"> <link rel="UP" title="GTK+/Gnome Object Hierarchy" href= "hierarchy.html"> <link rel="PREVIOUS" title="GTK+/Gnome Object Hierarchy" href= "hierarchy.html"> <link rel="NEXT" title="Widgets" href="z207.html"> </head> <body bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink= "#840084" alink="#0000FF"> <div class="NAVHEADER"> <table width="100%" border="0" bgcolor="#ffffff" cellpadding= "1" cellspacing="0"> <tr> <th colspan="4" align="center"> <font color="#000000" size="2">GTK+ / Gnome Application Development</font> </th> </tr> <tr> <td width="25%" bgcolor="#ffffff" align="left"> <a href="hierarchy.html"><font color="#0000ff" size= "2"><b><<< Previous</b></font></a> </td> <td width="25%" colspan="2" bgcolor="#ffffff" align= "center"> <font color="#0000ff" size="2"><b><a href="ggad.html"> <font color="#0000ff" size="2"><b> Home</b></font></a></b></font> </td> <td width="25%" bgcolor="#ffffff" align="right"> <a href="z207.html"><font color="#0000ff" size="2"><b> Next >>></b></font></a> </td> </tr> </table> </div> <div class="SECT1"> <h1 class="SECT1"> <a name="Z202"><span class="STRUCTNAME"> GtkObject</span></a> </h1> <div class="SECT2"> <h2 class="SECT2"> <a name="Z203"><span class="STRUCTNAME"> GtkObject</span></a> </h2> <div class="SECT3"> <h3 class="SECT3"> <a name="Z204">Library</a> </h3> <p> GTK+ </p> </div> <div class="SECT3"> <h3 class="SECT3"> <a name="Z205">Header File</a> </h3> <p> <tt class="FILENAME">gtk/gtkobject.h</tt> </p> </div> <div class="SECT3"> <h3 class="SECT3"> <a name="Z206">Description</a> </h3> <p> <span class="STRUCTNAME">GtkObject</span> is the base of GTK+'s object hierarchy. It is not a graphical component; it implements interfaces for reference counting, attaching key-value pairs to objects and object destruction ("virtual destructors" in C++ terms). <span class="STRUCTNAME">GtkObject</span> itself makes heavy use of the GTK+ type system. The signal/callback infrastructure of GTK+ works in terms of <span class="STRUCTNAME">GtkObject</span>---that is, signals are emitted from a particular <span class= "STRUCTNAME">GtkObject</span>, and callbacks are connected to a particular object and signal. </p> <p> <a href="cha-objects.html">the chapter called <i>The GTK+ Object and Type System</i></a> covers <span class= "STRUCTNAME">GtkObject</span> in detail. </p> </div> </div> </div> <div class="NAVFOOTER"> <br> <br> <table width="100%" border="0" bgcolor="#ffffff" cellpadding= "1" cellspacing="0"> <tr> <td width="25%" bgcolor="#ffffff" align="left"> <a href="hierarchy.html"><font color="#0000ff" size= "2"><b><<< Previous</b></font></a> </td> <td width="25%" colspan="2" bgcolor="#ffffff" align= "center"> <font color="#0000ff" size="2"><b><a href="ggad.html"> <font color="#0000ff" size="2"><b> Home</b></font></a></b></font> </td> <td width="25%" bgcolor="#ffffff" align="right"> <a href="z207.html"><font color="#0000ff" size="2"><b> Next >>></b></font></a> </td> </tr> <tr> <td colspan="2" align="left"> <font color="#000000" size="2"><b>GTK+/Gnome Object Hierarchy</b></font> </td> <td colspan="2" align="right"> <font color="#000000" size="2"><b>Widgets</b></font> </td> </tr> </table> </div> </body></html>?? 快捷鍵說(shuō)明
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