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<HTML><HEAD><TITLE>Xlib Programming Manual: Prototype White Point Adjustment Procedure</TITLE></HEAD><BODY><H1 ALIGN=center>6.10.3 Prototype White Point Adjustment Procedure</H1>The white point adjustment procedure interface must adhere to the following:<!.IN "XcmsWhiteAdjustProc" "" "@DEF@"><CODE><PRE>typedef <B><A HREF="../conversion-contexts-and-gamut-mapping.html#cmsStatus">Status</A></B> (*XcmsWhiteAdjustProc)(<B>ccc</B>, <B>initial_white_point</B>, <B>target_white_point</B>, <B>target_format</B>,                <B>colors_in_out</B>, <B>ncolors</B>, <B>compression_flags_return</B>)       <A HREF="../CCC/macros.html">XcmsCCC</A> <B>ccc</B>;       <A HREF="../structures.html#XcmsColor">XcmsColor</A> *<B>initial_white_point</B>;       <A HREF="../structures.html#XcmsColor">XcmsColor</A> *<B>target_white_point</B>;       <A HREF="../structures.html#XcmsColor">XcmsColorFormat</A> <B>target_format</B>;       <A HREF="../structures.html#XcmsColor">XcmsColor</A> <B>colors_in_out[]</B>;       unsigned int <B>ncolors</B>;       Bool <B>compression_flags_return[]</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>ccc</B><TD> Specifies the <A HREF="../conversion-contexts-and-gamut-mapping.html">CCC</A>.<TR><TD> <B>initial_white_point</B><TD> Specifies the initial white point.<TR><TD> <B>target_white_point</B><TD> Specifies the target white point.<TR><TD> <B>target_format</B><TD> Specifies the target color specification format.<TR><TD> <B>colors_in_out</B><TD> Specifies an array of color specifications.Pixel members should be ignored and must remain unchanged upon return.<TR><TD> <B>ncolors</B><TD> Specifies the number of <A HREF="../structures.html#XcmsColor">XcmsColor</A>structures in the color specification array.<TR><TD> <B>compression_flags_return</B><TD> Returns an array of Boolean values for indicating compression status.If a non-NULL pointer is suppliedand a color at a given index is compressed, then<B>True</B>should be stored at the corresponding index in this array;otherwise, the array should not be modified.</TABLE><H5 ALIGN=right><I>Next: <A HREF="supplied-white-point-adjustment.html">Supplied White Point Adjustment Procedures</A></I></H5><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>

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