appicon.html
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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/appicon.doc:36 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>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: #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>Setting the Application Icon</h1><p> The application icon, typically displayed in the upper left corner of theapplication top-level windows, is set by calling the<a href="qwidget.html#setIcon">QWidget::setIcon</a>() method on top-level widgets.<p> 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> <!-- toc --><ul><li><a href="#1"> Setting the Application Icon on Windows</a><li><a href="#2"> Setting the Application Icon on Mac OS X</a></ul><!-- endtoc --><p> <h2> Setting the Application Icon on Windows</h2><a name="1"></a><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,for example, with the name, "myappico.ico". Then, create a text filecalled e.g. "myapp.rc" in which you put a single line of text:<pre>IDI_ICON1 ICON DISCARDABLE "myappico.ico"</pre> <p> Lastly, assuming you are using qmake 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 qmake, the necessary steps are: first, run the "rc"program on the .rc file, then link your application with the resulting.res file.<p> <h2> Setting the Application Icon on Mac OS X</h2><a name="2"></a><p> The application icon, typically displayed in the application dockarea, is set by calling <a href="qwidget.html#setIcon">QWidget::setIcon</a>() on a top-level widget. Itis possible that the program could appear in the application dock areabefore the function call, in which case a default icon will appearduring the bouncing animation. <p> To ensure that the correct icon appears, both when the application isbeing launched, and in the finder, it is necessary to employ aplatform-dependent technique.<p> Although many programs can create icon files (<tt>.icns</tt>), the recommendedapproach is to use the <em>Icon Composer</em> program supplied by Apple (in theDeveloper/Application folder). <em>Icon Composer</em> allows you to import severaldifferent sized icons (for use in different contexts) as well as the masksthat go with them. Save the set of icons to a file in your projectdirectory.<p> If you are using <a href="qmake-manual.html">qmake</a> to generateyour make files, you only need to add a single line to your <tt>.pro</tt>project file. For example, if the name of your icon file is<tt>myapp.icns</tt>, and your project file is <tt>myapp.pro</tt>, add this lineto <tt>myapp.pro</tt>:<pre>RC_FILE = myapp.icns</pre> This will ensure that <a href="qmake-manual.html">qmake</a> puts youricons in the proper place and creates a <tt>Info.plist</tt> entry for theicon.<p> If you do not use <a href="qmake-manual.html">qmake</a>, you must dothe following manually:<ol type=1><li> Create an Info.plist file for your application (using thePropertyListEditor, found in Developer/Applications).<li> Associate your .icns record with the CFBundleIconFile record in theInfo.plist file (again, using the PropertyListEditor).<li> Copy both the icns and your Info.plist into your application bundleResource directory.</ol><p> <!-- 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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