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<HTML><HEAD><TITLE>Xlib Programming Manual: XGetVisualInfo</TITLE></HEAD><BODY><H1 ALIGN=center>XGetVisualInfo</H1><H2>Syntax</H2><!.IN "XGetVisualInfo" "" "@DEF@"><CODE><PRE>XVisualInfo *XGetVisualInfo(<B>display</B>, <B>vinfo_mask</B>, <B>vinfo_template</B>, <B>nitems_return</B>) <A HREF="../display/opening.html#Display">Display</A> *<B>display</B>; long <B>vinfo_mask</B>; <A HREF="visual.html#XVisualInfo">XVisualInfo</A> *<B>vinfo_template</B>; int *<B>nitems_return</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>vinfo_mask</B><TD> Specifies the visual mask value.<TR><TD> <B>vinfo_template</B><TD> Specifies the visual attributes that are to be used in matching the visualstructures.<TR><TD> <B>nitems_return</B><TD> Returns the number of matching visual structures.</TABLE><H2>Description</H2>The<B><A HREF="XGetVisualInfo.html">XGetVisualInfo()</A></B>function returns a list of visual structures that have attributes equal to the attributes specified by vinfo_template.If no visual structures match the template using the specified vinfo_mask,<B><A HREF="XGetVisualInfo.html">XGetVisualInfo()</A></B>returns a NULL.To free the data returned by this function, use<B><A HREF="../display/XFree.html">XFree()</A></B>.<H2>See also</H2><B><A HREF="../display/XFree.html">XFree()</A></B>,<B><A HREF="XMatchVisualInfo.html">XMatchVisualInfo()</A></B>,<B><A HREF="../window/XVisualIDFromVisual.html">XVisualIDFromVisual()</A></B>,"<A HREF="visual.html">Determining the Appropriate Visual Type</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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