group__nanox__region.html

Nano-x的设计架及相关文档----这是网上下载的中文翻译版本, E文的可以在其网站上下载.

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          <td class="md" nowrap>GR_SIZE&nbsp;</td>
          <td class="mdname" nowrap> <em>width</em>, </td>
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          <td class="md" nowrap>GR_SIZE&nbsp;</td>
          <td class="mdname" nowrap> <em>height</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Creates a new region structure, fills it with the region described by the specified polygon, and returns the ID used to refer to it.
<p>
1 bits in the bitmap specify areas inside the region and 0 bits specify areas outside it.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign=top><em>bitmap</em>&nbsp;</td><td>pointer to a GR_BITMAP array specifying the region mask </td></tr>
    <tr><td valign=top><em>width</em>&nbsp;</td><td>the width of the bitmap </td></tr>
    <tr><td valign=top><em>height</em>&nbsp;</td><td>the height of the bitmap </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>the ID of the newly allocated region structure, or 0 on error </dd></dl>
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<a name="a14" doxytag="nano-X.h::GrNewPolygonRegion"></a><p>
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          <td class="md" nowrap valign="top"> GR_REGION_ID GrNewPolygonRegion </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">int&nbsp;</td>
          <td class="mdname" nowrap> <em>mode</em>, </td>
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          <td></td>
          <td class="md" nowrap>GR_COUNT&nbsp;</td>
          <td class="mdname" nowrap> <em>count</em>, </td>
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          <td></td>
          <td class="md" nowrap>GR_POINT *&nbsp;</td>
          <td class="mdname" nowrap> <em>points</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Creates a new region structure, fills it with the region described by the specified polygon, and returns the ID used to refer to it.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign=top><em>mode</em>&nbsp;</td><td>the polygon mode to use (GR_POLY_EVENODD or GR_POLY_WINDING) </td></tr>
    <tr><td valign=top><em>count</em>&nbsp;</td><td>the number of points in the polygon </td></tr>
    <tr><td valign=top><em>points</em>&nbsp;</td><td>pointer to an array of point structures describing the polygon </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>the ID of the newly allocated region structure, or 0 on error </dd></dl>
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<a name="a0" doxytag="nano-X.h::GrNewRegion"></a><p>
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          <td class="md" nowrap valign="top"> GR_REGION_ID GrNewRegion </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">void&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Creates a new region structure.
<p>
The structure is initialised with a set of default parameters.<p>
<dl compact><dt><b>Returns:</b></dt><dd>the ID of the newly created region </dd></dl>
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<a name="a12" doxytag="nano-X.h::GrOffsetRegion"></a><p>
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          <td class="md" nowrap valign="top"> void GrOffsetRegion </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">GR_REGION_ID&nbsp;</td>
          <td class="mdname" nowrap> <em>region</em>, </td>
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          <td></td>
          <td class="md" nowrap>GR_SIZE&nbsp;</td>
          <td class="mdname" nowrap> <em>dx</em>, </td>
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          <td></td>
          <td class="md" nowrap>GR_SIZE&nbsp;</td>
          <td class="mdname" nowrap> <em>dy</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Offsets the specified region by the specified distance.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign=top><em>region</em>&nbsp;</td><td>The ID of the region to offset </td></tr>
    <tr><td valign=top><em>dx</em>&nbsp;</td><td>The distance to offset the region by in the X axis </td></tr>
    <tr><td valign=top><em>dy</em>&nbsp;</td><td>The distance to offset the region by in the Y axis </td></tr>
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<a name="a8" doxytag="nano-X.h::GrPointInRegion"></a><p>
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          <td class="md" nowrap valign="top"> GR_BOOL GrPointInRegion </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">GR_REGION_ID&nbsp;</td>
          <td class="mdname" nowrap> <em>region</em>, </td>
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          <td class="md" nowrap>GR_COORD&nbsp;</td>
          <td class="mdname" nowrap> <em>x</em>, </td>
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          <td class="md" nowrap>GR_COORD&nbsp;</td>
          <td class="mdname" nowrap> <em>y</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Tests whether the specified point is within the specified region, and then returns either True or False depending on the result.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign=top><em>region</em>&nbsp;</td><td>the ID of the region to examine. </td></tr>
    <tr><td valign=top><em>x</em>&nbsp;</td><td>the X coordinate of the point to test for. </td></tr>
    <tr><td valign=top><em>y</em>&nbsp;</td><td>the Y coordinate of the point to test for. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>TRUE if the point is within the region, otherwise FALSE. </dd></dl>
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<a name="a9" doxytag="nano-X.h::GrRectInRegion"></a><p>
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          <td class="md" nowrap valign="top"> int GrRectInRegion </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">GR_REGION_ID&nbsp;</td>
          <td class="mdname" nowrap> <em>region</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>GR_COORD&nbsp;</td>
          <td class="mdname" nowrap> <em>x</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>GR_COORD&nbsp;</td>
          <td class="mdname" nowrap> <em>y</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>GR_COORD&nbsp;</td>
          <td class="mdname" nowrap> <em>w</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>GR_COORD&nbsp;</td>
          <td class="mdname" nowrap> <em>h</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
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