111 lines
2.9 KiB
HTML
111 lines
2.9 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of XcupStoreColors</TITLE>
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</HEAD><BODY>
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<H1>XcupStoreColors</H1>
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Section: X FUNCTIONS (3)<BR>Updated: libXext 1.3.4<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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XcupStoreColors - initialize shareable colormap entries at specific locations
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<P>
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<PRE>
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<B>cc</B> [ <I>flag</I> ... ] <I>file</I> ... -<B>lXext</B> [ <I>library</I> ... ]
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#include <<A HREF="file:///usr/include/X11/extensions/Xcup.h">X11/extensions/Xcup.h</A>>
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<DL COMPACT>
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<DT id="1"><DD>Status <B>XcupStoreColors</B>(Display *<I>display</I>, Colormap <I>colormap</I>,
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XColor *<I>colors_in_out</I>, int <I>ncolors</I>);
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<BR>
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</DL>
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</PRE><A NAME="lbAD"> </A>
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<H2>ARGUMENTS</H2>
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<DL COMPACT>
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<DT id="2"><I>display</I><DD>
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Specifies the connection to the X server
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<DT id="3"><I>colormap</I><DD>
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Specifies the colormap
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<DT id="4"><I>colors_in_out</I><DD>
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Specifies and returns the values actually used in the colormap
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<DT id="5"><I>ncolors</I><DD>
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Specifies the number of items in colors_in_out
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</DL>
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<A NAME="lbAE"> </A>
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<H2>DESCRIPTION</H2>
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<P>
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The
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<I>XcupStoreColors</I>
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function changes the colormap entries of the pixel values in the pixel
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members of the XColor structures. The colormap entries are allocated
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as if an AllocColor has been used instead, i.e. the colors are
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read-only (shareable).
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<I>XcupStoreColors</I>
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returns the number of colors that were successfully allocated in the colormap.
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<P>
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A
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<I>Value</I>
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error is generated if a pixel is not a valid index into the colormap. A
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<I>BadMatch</I>
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error is generated if the colormap does not belong to a GrayScale,
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PseudoColor, or DirectColor visual.
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<P>
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Applications which allocate many colors in a screen's default colormap, e.g.
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a color-cube or a gray-ramp, should allocate them with
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<I>XCupStoreColors</I>.
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By using XCupStoreColors the colors will be allocated sharable (read-only)
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and any other application which allocates the same color will share that
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color cell.
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<A NAME="lbAF"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?3Xext+XcupQueryVersion">XcupQueryVersion</A></B>(3Xext),
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<B><A HREF="/cgi-bin/man/man2html?3Xext+XcupGetReservedColormapEntries">XcupGetReservedColormapEntries</A></B>(3Xext),
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<BR>
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<I>Colormap Utilization Policy and Extension</I>
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="6"><A HREF="#lbAB">NAME</A><DD>
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<DT id="7"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="8"><A HREF="#lbAD">ARGUMENTS</A><DD>
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<DT id="9"><A HREF="#lbAE">DESCRIPTION</A><DD>
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<DT id="10"><A HREF="#lbAF">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:06:00 GMT, March 31, 2021
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</BODY>
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</HTML>
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