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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Qt Toolkit - Setting the Application Icon</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: white; color: black; }--></style></head><body bgcolor="#ffffff"><p><table width="100%"><tr><td><a href="index.html"><img width="100" height="100" src="qtlogo.png"alt="Home" border="0"><img width="100"height="100" src="face.png" alt="Home" border="0"></a><td valign="top"><div align="right"><img src="dochead.png" width="472" height="27"><br><a href="classes.html"><b>Classes</b></a>- <a href="annotated.html">Annotated</a>- <a href="hierarchy.html">Tree</a>- <a href="functions.html">Functions</a>- <a href="index.html">Home</a>- <a href="topicals.html"><b>Structure</b> <font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" align="center" size=32>Qte</font></a></div></table><h1 align="center"> Setting the Application Icon</h1><br clear="all">The application icon, typically displayed in the upper left corner of theapplication top-level windows, can in Qt be set by using theQWidget::setIcon() method on the top-level widgets.<p>However, in order to change the icon of the executable application fileitself, as it is presented on the desktop (i.e. prior to applicationexecution), it is necessary to employ another, platform-dependenttechnique.<p><h2>Setting the Application Icon on Windows</h2><p>First, create an ICO format bitmap file that contains the icon image. Thiscan be done with e.g. Microsoft Visual C++: Select "File->New...", thenselect the "File" tab in the dialog that appears, and choose "Icon". (Notethat you do not need to load your application into Visual C++; here we areonly using its icon editor).<p>Store the ICO file in the source code directory of your application, saywith the name "myappico.ico". Then, create a text file callede.g. "myapp.rc", and let it contain this single line of text:<p><pre>IDI_ICON1 ICON DISCARDABLE "myappico.ico"</pre><p>Lastly, assuming you are using tmake to generate your makefiles, add thisline to your "myapp.pro" file:<p><pre>RC_FILE = myapp.rc</pre><p>Regenerate your makefile and your application. The .exe file will now berepresented with your icon in e.g. Explorer.<p>If you do not use tmake, the necessary steps are: First, run the "rc"program on the .rc file, then link your application with the resulting.res file.<p><address><hr><div align="center"><table width="100%" cellspacing="0" border="0"><tr><td>Copyright ⌨️ 快捷键说明
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