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<HTML><HEAD><TITLE>Xlib Programming Manual: XCopyGC</TITLE></HEAD><BODY><H1 ALIGN=center>XCopyGC</H1><H2>Syntax</H2><!.IN "XCopyGC" "" "@DEF@"><CODE><PRE>XCopyGC(<B>display</B>, <B>src</B>, <B>valuemask</B>, <B>dest</B>) <A HREF="../display/opening.html#Display">Display</A> *<B>display</B>; <A HREF="manipulating.html">GC</A> <B>src</B>, <B>dest</B>; unsigned long <B>valuemask</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>src</B><TD> Specifies the components of the source GC.<TR><TD> <B>valuemask</B><TD> Specifies which components in the GC are to be copied to the destination GC. This argument is the bitwise inclusive OR of zero or more of the validGC component mask bits.<TR><TD> <B>dest</B><TD> Specifies the destination GC.</TABLE><H2>Description</H2> The<B>XCopyGC()</B>function copies the specified components from the source GCto the destination GC.The source and destination GCs must have the same root and depth,or a<B>BadMatch</B>error results.The valuemask specifies which component to copy, as for<B><A HREF="XCreateGC.html">XCreateGC()</A></B>.<P><B>XCopyGC()</B>can generate<B>BadAlloc</B>,<B>BadGC</B>,and<B>BadMatch</B>errors.<H2>Diagnostics</H2><TABLE><TR><TD><B>BadAlloc</B><TD> The server failed to allocate the requested source or server memory.<TR><TD><B>BadGC</B><TD>A value for a <B><A HREF="../my-own/gcontext.html">GContext</A></B> argument does not name a defined <B><A HREF="../my-own/gcontext.html">GContext</A></B>.<TR><TD><B>BadMatch</B><TD>An<B><A HREF="../window/create.html#InputClass">InputOnly</A></B>window is used as a Drawable.<TR><TD><B>BadMatch</B><TD>Some argument or pair of arguments has the correct type and range but fails to match in some other way required by the request. </TABLE><H2>See also</H2><B><A HREF="../display/display-macros.html#AllPlanes">AllPlanes()</A></B>,<B><A HREF="XChangeGC.html">XChangeGC()</A></B>, <B><A HREF="../graphics/XCopyArea.html">XCopyArea()</A></B>,<B><A HREF="XCreateGC.html">XCreateGC()</A></B>,<B><A HREF="../utilities/regions/XCreateRegion.html">XCreateRegion()</A></B>,<B><A HREF="../graphics/drawing/XDrawArc.html">XDrawArc()</A></B>,<B><A HREF="../graphics/drawing/XDrawLine.html">XDrawLine()</A></B>,<B><A HREF="../graphics/drawing/XDrawRectangle.html">XDrawRectangle()</A></B>,<B><A HREF="../graphics/drawing-text/XDrawText.html">XDrawText()</A></B>,<B><A HREF="../graphics/filling-areas/XFillRectangle.html">XFillRectangle()</A></B>,<B><A HREF="XFreeGC.html">XFreeGC()</A></B>, <B><A HREF="XGContextFromGC.html">XGContextFromGC()</A></B>,<B><A HREF="XGetGCValues.html">XGetGCValues()</A></B>, <B><A HREF="convenience-functions/XQueryBestSize.html">XQueryBestSize()</A></B>,<B><A HREF="convenience-functions/XSetArcMode.html">XSetArcMode()</A></B>,<B><A HREF="convenience-functions/XSetClipOrigin.html">XSetClipOrigin()</A></B>,"<A HREF="manipulating.html">Manipulating Graphics Context/State</A>".<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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