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<h1>dmxcursor.h File Reference</h1><code>#include "mipointer.h"</code><br>
<p>
<a href="dmxcursor_8h-source.html">Go to the source code of this file.</a><table border=0 cellpadding=0 cellspacing=0>
<tr><td></td></tr>
<tr><td colspan=2><br><h2>Data Structures</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>struct </td><td class="memItemRight" valign=bottom><a class="el" href="struct__dmxCursorPriv.html">_dmxCursorPriv</a></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__dmxCursorPriv.html">_dmxCursorPriv</a> </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a1">dmxCursorPrivRec</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>typedef <a class="el" href="struct__dmxCursorPriv.html">_dmxCursorPriv</a> * </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a2">dmxCursorPrivPtr</a></td></tr>
<tr><td colspan=2><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a5">dmxReInitOrigins</a> (void)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a6">dmxInitOrigins</a> (void)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a7">dmxInitOverlap</a> (void)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a8">dmxCursorNoMulti</a> (void)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a9">dmxMoveCursor</a> (ScreenPtr pScreen, int x, int y)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a10">dmxCheckCursor</a> (void)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>int </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a11">dmxOnScreen</a> (int x, int y, <a class="el" href="struct__DMXScreenInfo.html">DMXScreenInfo</a> *dmxScreen)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a12">dmxHideCursor</a> (<a class="el" href="struct__DMXScreenInfo.html">DMXScreenInfo</a> *dmxScreen)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a13">dmxBECreateCursor</a> (ScreenPtr pScreen, CursorPtr pCursor)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>Bool </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a14">dmxBEFreeCursor</a> (ScreenPtr pScreen, CursorPtr pCursor)</td></tr>
<tr><td colspan=2><br><h2>Variables</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>miPointerScreenFuncRec </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a3">dmxPointerCursorFuncs</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>miPointerSpriteFuncRec </td><td class="memItemRight" valign=bottom><a class="el" href="dmxcursor_8h.html#a4">dmxPointerSpriteFuncs</a></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
Interface for cursor support. <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="dmxcursor_8c.html">dmxcursor.c</a>.</dd></dl>
<hr><h2>Typedef Documentation</h2>
<a class="anchor" name="a2" doxytag="dmxcursor.h::dmxCursorPrivPtr" ></a><p>
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<td class="md" nowrap valign="top"> typedef struct <a class="el" href="struct__dmxCursorPriv.html">_dmxCursorPriv</a> * <a class="el" href="struct__dmxCursorPriv.html">dmxCursorPrivPtr</a>
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<p>
Cursor private area. </td>
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<a class="anchor" name="a1" doxytag="dmxcursor.h::dmxCursorPrivRec" ></a><p>
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<td class="md" nowrap valign="top"> typedef struct <a class="el" href="struct__dmxCursorPriv.html">_dmxCursorPriv</a> <a class="el" href="struct__dmxCursorPriv.html">dmxCursorPrivRec</a>
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<p>
Cursor private area. </td>
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<hr><h2>Function Documentation</h2>
<a class="anchor" name="a13" doxytag="dmxcursor.h::dmxBECreateCursor" ></a><p>
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<td class="md" nowrap valign="top"> void dmxBECreateCursor </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">ScreenPtr </td>
<td class="mdname" nowrap> <em>pScreen</em>, </td>
</tr>
<tr>
<td></td>
<td></td>
<td class="md" nowrap>CursorPtr </td>
<td class="mdname" nowrap> <em>pCursor</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
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</td>
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</td>
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<p>
Create <em>pCursor</em> on the back-end associated with <em>pScreen</em>. </td>
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<a class="anchor" name="a14" doxytag="dmxcursor.h::dmxBEFreeCursor" ></a><p>
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<td class="md" nowrap valign="top"> Bool dmxBEFreeCursor </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">ScreenPtr </td>
<td class="mdname" nowrap> <em>pScreen</em>, </td>
</tr>
<tr>
<td></td>
<td></td>
<td class="md" nowrap>CursorPtr </td>
<td class="mdname" nowrap> <em>pCursor</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
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</td>
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</td>
<td>
<p>
Free <em>pCursor</em> on the back-end associated with <em>pScreen</em>. </td>
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<a class="anchor" name="a10" doxytag="dmxcursor.h::dmxCheckCursor" ></a><p>
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<td class="md" nowrap valign="top"> void dmxCheckCursor </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">void </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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</td>
<td>
<p>
This routine is called during reconfiguration to make sure the cursor is visible. </td>
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<a class="anchor" name="a8" doxytag="dmxcursor.h::dmxCursorNoMulti" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top"> void dmxCursorNoMulti </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">void </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
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</td>
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<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
Turn off support for displaying multiple cursors on overlapped back-end displays. See #dmxCursorDoMultiCursors. </td>
</tr>
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<a class="anchor" name="a12" doxytag="dmxcursor.h::dmxHideCursor" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top"> void dmxHideCursor </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="struct__DMXScreenInfo.html">DMXScreenInfo</a> * </td>
<td class="mdname1" valign="top" nowrap> <em>dmxScreen</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
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<td>
</td>
<td>
<p>
This routine is used by the backend input routines to hide the cursor on a screen that is being used for relative input. <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="dmxbackend_8c.html">dmxbackend.c</a> </dd></dl>
</td>
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<a class="anchor" name="a6" doxytag="dmxcursor.h::dmxInitOrigins" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top"> void dmxInitOrigins </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">void </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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</td>
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<table cellspacing=5 cellpadding=0 border=0>
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<p>
Initialize screen origins (and relative position). This is called for each server generation. For dynamic reconfiguration, use <a class="el" href="dmxcursor_8c.html#a21">dmxReInitOrigins()</a> instead. </td>
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<a class="anchor" name="a7" doxytag="dmxcursor.h::dmxInitOverlap" ></a><p>
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<td class="md" nowrap valign="top"> void dmxInitOverlap </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">void </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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</td>
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<p>
Detects overlapping dmxScreens and creates circular lists. This uses an O(dmxNumScreens^2) algorithm, but dmxNumScreens is < 100 and the computation only needs to be performed for every server generation or dynamic reconfiguration . </td>
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<a class="anchor" name="a9" doxytag="dmxcursor.h::dmxMoveCursor" ></a><p>
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<td class="md" nowrap valign="top"> void dmxMoveCursor </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">ScreenPtr </td>
<td class="mdname" nowrap> <em>pScreen</em>, </td>
</tr>
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<td></td>
<td></td>
<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>x</em>, </td>
</tr>
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<td></td>
<td></td>
<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>y</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
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</td>
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<table cellspacing=5 cellpadding=0 border=0>
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</td>
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<p>
Move the cursor to coordinates (<em>x</em>, <em>y</em>)on <em>pScreen</em>. This function is usually called via <a class="el" href="dmxcursor_8h.html#a4">dmxPointerSpriteFuncs</a>, except during reconfiguration when the cursor is repositioned to force an update on newley overlapping screens and on screens that no longer overlap. </td>
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<a class="anchor" name="a11" doxytag="dmxcursor.h::dmxOnScreen" ></a><p>
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<td class="md" nowrap valign="top"> int dmxOnScreen </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname" nowrap> <em>x</em>, </td>
</tr>
<tr>
<td></td>
<td></td>
<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>y</em>, </td>
</tr>
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<td></td>
<td></td>
<td class="md" nowrap><a class="el" href="struct__DMXScreenInfo.html">DMXScreenInfo</a> * </td>
<td class="mdname" nowrap> <em>dmxScreen</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
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<p>
Returns non-zero if the global <em>x</em>, <em>y</em> coordinate is on the screen window of the <em>dmxScreen</em>. </td>
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<a class="anchor" name="a5" doxytag="dmxcursor.h::dmxReInitOrigins" ></a><p>
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<td class="md" nowrap valign="top"> void dmxReInitOrigins </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">void </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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<p>
Recompute origin information in the <a class="el" href="dmxinit_8c.html#a2">dmxScreens</a> list. This is either called from <a class="el" href="dmxcursor_8c.html#a22">dmxInitOrigins()</a> or from #dmxReconfig(). </td>
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<hr><h2>Variable Documentation</h2>
<a class="anchor" name="a3" doxytag="dmxcursor.h::dmxPointerCursorFuncs" ></a><p>
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<td class="md" nowrap valign="top"> miPointerScreenFuncRec <a class="el" href="dmxcursor_8h.html#a3">dmxPointerCursorFuncs</a>
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<p>
Cursor functions for mi layer. <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="dmxcursor_8c.html">dmxcursor.c</a> <p>
<a class="el" href="dmxscrinit_8c.html">dmxscrinit.c</a> </dd></dl>
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<a class="anchor" name="a4" doxytag="dmxcursor.h::dmxPointerSpriteFuncs" ></a><p>
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<td class="md" nowrap valign="top"> miPointerSpriteFuncRec <a class="el" href="dmxcursor_8h.html#a4">dmxPointerSpriteFuncs</a>
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<p>
Sprite functions for mi layer. <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="dmxcursor_8c.html">dmxcursor.c</a> <p>
<a class="el" href="dmxscrinit_8c.html">dmxscrinit.c</a> </dd></dl>
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<hr>
<address>
<small>
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1.3.4.
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