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<HTML><HEAD><TITLE>Xlib Programming Manual: XGetPixel</TITLE></HEAD><BODY><H1 ALIGN=center>XGetPixel</H1><H2>Syntax</H2><!.IN "XGetPixel" "" "@DEF@"><CODE><PRE>unsigned long XGetPixel(<B>ximage</B>, <B>x</B>, <B>y</B>) <A HREF="../graphics/images.html#XImage">XImage</A> *<B>ximage</B>; int <B>x</B>; int <B>y</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>ximage</B><TD> Specifies the image.<TR><TD> <B>x</B><BR> <B>y</B><TD> Specify the x and y coordinates.</TABLE><H2>Description</H2>The<B>XGetPixel()</B>function returns the specified pixel from the named image.The pixel value is returned in normalized format (that is,the least-significant byte of the long is the least-significant byteof the pixel).The image must contain the x and y coordinates.<H2>See also</H2><B><A HREF="XAddPixel.html">XAddPixel()</A></B>,<B><A HREF="XCreateImage.html">XCreateImage()</A></B>,<B><A HREF="XDestroyImage.html">XDestroyImage()</A></B>,<B><A HREF="XPutPixel.html">XPutPixel()</A></B>,<B><A HREF="XSubImage.html">XSubImage()</A></B>,"<A HREF="manipulating-images.html">Manipulating Images</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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