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<HTML><HEAD><TITLE>Xlib Programming: GContext and GC</TITLE></HEAD><BODY><H1 ALIGN=center>GContext and GC in Xlib</H1>Many Xlib functions will return and use an integer resource ID, which allows you to refer to objects storedon the X server (see "<A HREF="../introduction/overview.html#XID">Overview of the X Window System</A>"),such as <A HREF="../window/">Window</A>, <A HREF="../graphics/font-metrics/">Font</A>, <A HREF="../pixmap-and-cursor/pixmap.html">Pixmap</A>, <A HREF="../color/#colormap">Colormap</A> and <A HREF="../pixmap-and-cursor/cursor.html">Cursor</A>. <A HREF="../GC/manipulating.html">GCs</A> however, are references toopaque structures stored on the client side for efficiencyreasons. For each <A HREF="../GC/manipulating.html">GC</A> there is acorreponding XID, whose type is <B>GContext</B>.<H5 ALIGN=right><I><A HREF="../">Back to the Xlib programmingmanual</A></I></H5>This page is not a part of the Xlib Programming manual.<HR><ADDRESS><A HREF="http://tronche.com/">Christophe Tronche</A>, <A HREF="mailto:ch.tronche@computer.org">ch.tronche@computer.org</A></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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