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<h1>dmxgc.h File Reference</h1><code>#include "gcstruct.h"</code><br>
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<a href="dmxgc_8h-source.html">Go to the source code of this file.</a><table border=0 cellpadding=0 cellspacing=0>
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<tr><td colspan=2><br><h2>Data Structures</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>struct &nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="struct__dmxGCPriv.html">_dmxGCPriv</a></td></tr>
<tr><td colspan=2><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>#define&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a0">DMX_GET_GC_PRIV</a>(_pGC)&nbsp;&nbsp;&nbsp;(<a class="el" href="struct__dmxGCPriv.html">dmxGCPrivPtr</a>)(_pGC)-&gt;devPrivates[<a class="el" href="dmxscrinit_8c.html#a2">dmxGCPrivateIndex</a>].ptr</td></tr>
<tr><td colspan=2><br><h2>Typedefs</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>typedef <a class="el" href="struct__dmxGCPriv.html">_dmxGCPriv</a>&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a3">dmxGCPrivRec</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>typedef <a class="el" href="struct__dmxGCPriv.html">_dmxGCPriv</a> *&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a4">dmxGCPrivPtr</a></td></tr>
<tr><td colspan=2><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>Bool&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a6">dmxInitGC</a> (ScreenPtr pScreen)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>Bool&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a7">dmxCreateGC</a> (GCPtr pGC)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a8">dmxValidateGC</a> (GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a9">dmxChangeGC</a> (GCPtr pGC, unsigned long mask)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a10">dmxCopyGC</a> (GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a11">dmxDestroyGC</a> (GCPtr pGC)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a12">dmxChangeClip</a> (GCPtr pGC, int type, pointer pvalue, int nrects)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a13">dmxDestroyClip</a> (GCPtr pGC)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a14">dmxCopyClip</a> (GCPtr pGCDst, GCPtr pGCSrc)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a15">dmxBECreateGC</a> (ScreenPtr pScreen, GCPtr pGC)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>Bool&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a16">dmxBEFreeGC</a> (GCPtr pGC)</td></tr>
<tr><td colspan=2><br><h2>Variables</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>int&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="dmxgc_8h.html#a5">dmxGCPrivateIndex</a></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
Interface for GC support. <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="dmxgc_8c.html">dmxgc.c</a></dd></dl>
<hr><h2>Define Documentation</h2>
<a class="anchor" name="a0" doxytag="dmxgc.h::DMX_GET_GC_PRIV" ></a><p>
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<td class="md" nowrap valign="top"> #define DMX_GET_GC_PRIV</td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">_pGC&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap>&nbsp;&nbsp;&nbsp;(<a class="el" href="struct__dmxGCPriv.html">dmxGCPrivPtr</a>)(_pGC)-&gt;devPrivates[<a class="el" href="dmxscrinit_8c.html#a2">dmxGCPrivateIndex</a>].ptr
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Get private. </td>
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<hr><h2>Typedef Documentation</h2>
<a class="anchor" name="a4" doxytag="dmxgc.h::dmxGCPrivPtr" ></a><p>
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<td class="md" nowrap valign="top"> typedef struct <a class="el" href="struct__dmxGCPriv.html">_dmxGCPriv</a> * <a class="el" href="struct__dmxGCPriv.html">dmxGCPrivPtr</a>
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GC private area. </td>
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<a class="anchor" name="a3" doxytag="dmxgc.h::dmxGCPrivRec" ></a><p>
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<td class="md" nowrap valign="top"> typedef struct <a class="el" href="struct__dmxGCPriv.html">_dmxGCPriv</a> <a class="el" href="struct__dmxGCPriv.html">dmxGCPrivRec</a>
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GC private area. </td>
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<hr><h2>Function Documentation</h2>
<a class="anchor" name="a15" doxytag="dmxgc.h::dmxBECreateGC" ></a><p>
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<td class="md" nowrap valign="top"> void dmxBECreateGC </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">ScreenPtr&nbsp;</td>
<td class="mdname" nowrap> <em>pScreen</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>GCPtr&nbsp;</td>
<td class="mdname" nowrap> <em>pGC</em></td>
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<td></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
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<p>
Create the GC on the back-end server. </td>
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<a class="anchor" name="a16" doxytag="dmxgc.h::dmxBEFreeGC" ></a><p>
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<td class="md" nowrap valign="top"> Bool dmxBEFreeGC </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">GCPtr&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>pGC</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
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&nbsp;
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<p>
Free the <em>pGC</em> on the back-end server. </td>
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<a class="anchor" name="a12" doxytag="dmxgc.h::dmxChangeClip" ></a><p>
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<td class="md" nowrap valign="top"> void dmxChangeClip </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">GCPtr&nbsp;</td>
<td class="mdname" nowrap> <em>pGC</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>int&nbsp;</td>
<td class="mdname" nowrap> <em>type</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>pointer&nbsp;</td>
<td class="mdname" nowrap> <em>pvalue</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>int&nbsp;</td>
<td class="mdname" nowrap> <em>nrects</em></td>
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<td></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
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<p>
Change the clip rects for a GC. </td>
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<a class="anchor" name="a9" doxytag="dmxgc.h::dmxChangeGC" ></a><p>
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<td class="md" nowrap valign="top"> void dmxChangeGC </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">GCPtr&nbsp;</td>
<td class="mdname" nowrap> <em>pGC</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>unsigned long&nbsp;</td>
<td class="mdname" nowrap> <em>mask</em></td>
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<td></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
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<p>
Set the values in the graphics context on the back-end server associated with <em>pGC's</em> screen. </td>
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<a class="anchor" name="a14" doxytag="dmxgc.h::dmxCopyClip" ></a><p>
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<td class="md" nowrap valign="top"> void dmxCopyClip </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">GCPtr&nbsp;</td>
<td class="mdname" nowrap> <em>pGCDst</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>GCPtr&nbsp;</td>
<td class="mdname" nowrap> <em>pGCSrc</em></td>
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<td></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
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Copy a GC's clip rects. </td>
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<a class="anchor" name="a10" doxytag="dmxgc.h::dmxCopyGC" ></a><p>
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<td class="md" nowrap valign="top"> void dmxCopyGC </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">GCPtr&nbsp;</td>
<td class="mdname" nowrap> <em>pGCSrc</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>unsigned long&nbsp;</td>
<td class="mdname" nowrap> <em>changes</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>GCPtr&nbsp;</td>
<td class="mdname" nowrap> <em>pGCDst</em></td>
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<td></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
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Copy <em>pGCSrc</em> to <em>pGCDst</em> on the back-end server associated with <em>pGCSrc's</em> screen. </td>
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<a class="anchor" name="a7" doxytag="dmxgc.h::dmxCreateGC" ></a><p>
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<td class="md" nowrap valign="top"> Bool dmxCreateGC </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">GCPtr&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>pGC</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
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<p>
Create a graphics context on the back-end server associated /a pGC's screen. </td>
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<a class="anchor" name="a13" doxytag="dmxgc.h::dmxDestroyClip" ></a><p>
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<td class="md" nowrap valign="top"> void dmxDestroyClip </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">GCPtr&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>pGC</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
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Destroy a GC's clip rects. </td>
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<a class="anchor" name="a11" doxytag="dmxgc.h::dmxDestroyGC" ></a><p>
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<td class="md" nowrap valign="top"> void dmxDestroyGC </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">GCPtr&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>pGC</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
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Destroy the graphics context, <em>pGC</em> and free the corresponding GC on the back-end server. </td>
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<a class="anchor" name="a6" doxytag="dmxgc.h::dmxInitGC" ></a><p>
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<td class="md" nowrap valign="top"> Bool dmxInitGC </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">ScreenPtr&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>pScreen</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
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Initialize the GC on <em>pScreen</em>, which currently involves allocating the GC private associated with this screen. </td>
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<a class="anchor" name="a8" doxytag="dmxgc.h::dmxValidateGC" ></a><p>
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<td class="md" nowrap valign="top"> void dmxValidateGC </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">GCPtr&nbsp;</td>
<td class="mdname" nowrap> <em>pGC</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>unsigned long&nbsp;</td>
<td class="mdname" nowrap> <em>changes</em>, </td>
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<td></td>
<td></td>
<td class="md" nowrap>DrawablePtr&nbsp;</td>
<td class="mdname" nowrap> <em>pDrawable</em></td>
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<td></td>
<td class="md">)&nbsp;</td>
<td class="md" colspan="2"></td>
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Validate a graphics context, <em>pGC</em>, locally in the DMX server and recompute the composite clip, if necessary. </td>
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<hr><h2>Variable Documentation</h2>
<a class="anchor" name="a5" doxytag="dmxgc.h::dmxGCPrivateIndex" ></a><p>
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<td class="md" nowrap valign="top"> int <a class="el" href="dmxscrinit_8c.html#a2">dmxGCPrivateIndex</a>
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Private index for GCs </td>
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