group__nanox__draw.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.

          <td class="md" nowrap>unsigned long&nbsp;</td>
          <td class="mdname" nowrap> <em>op</em></td>
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<p>
Copies the specified area of the specified size between the specified drawables at the specified positions using the specified graphics context and ROP codes.
<p>
0 is a sensible default ROP code in most cases.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign=top><em>id</em>&nbsp;</td><td>the ID of the drawable to copy the area to </td></tr>
    <tr><td valign=top><em>gc</em>&nbsp;</td><td>the ID of the graphics context to use when copying the area </td></tr>
    <tr><td valign=top><em>x</em>&nbsp;</td><td>the X coordinate to copy the area to within the destination drawable </td></tr>
    <tr><td valign=top><em>y</em>&nbsp;</td><td>the Y coordinate to copy the area to within the destination drawable </td></tr>
    <tr><td valign=top><em>width</em>&nbsp;</td><td>the width of the area to copy </td></tr>
    <tr><td valign=top><em>height</em>&nbsp;</td><td>the height of the area to copy </td></tr>
    <tr><td valign=top><em>srcid</em>&nbsp;</td><td>the ID of the drawable to copy the area from </td></tr>
    <tr><td valign=top><em>srcx</em>&nbsp;</td><td>the X coordinate to copy the area from within the source drawable </td></tr>
    <tr><td valign=top><em>srcy</em>&nbsp;</td><td>the Y coordinate to copy the area from within the source drawable </td></tr>
    <tr><td valign=top><em>op</em>&nbsp;</td><td>the ROP codes to pass to the blitter when performing the copy </td></tr>
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<a name="a2" doxytag="nano-X.h::GrCopyGC"></a><p>
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          <td class="md" nowrap valign="top"> GR_GC_ID GrCopyGC </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">GR_GC_ID&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>gc</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Creates a new graphics context structure and copies the settings from an already existing graphics context.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign=top><em>gc</em>&nbsp;</td><td>The already existing graphics context to copy the parameters from. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>The ID of the newly created graphics context or 0 on error. </dd></dl>
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<a name="a3" doxytag="nano-X.h::GrDestroyGC"></a><p>
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          <td class="md" nowrap valign="top"> void GrDestroyGC </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">GR_GC_ID&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>gc</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Destroys a graphics context structure.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign=top><em>gc</em>&nbsp;</td><td>the ID of the graphics context structure to destroy </td></tr>
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<a name="a27" doxytag="nano-X.h::GrDrawImageBits"></a><p>
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          <td class="md" nowrap valign="top"> void GrDrawImageBits </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">GR_DRAW_ID&nbsp;</td>
          <td class="mdname" nowrap> <em>id</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>GR_GC_ID&nbsp;</td>
          <td class="mdname" nowrap> <em>gc</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_IMAGE_HDR *&nbsp;</td>
          <td class="mdname" nowrap> <em>pimage</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
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<p>
Draws the image contained in the specified image structure onto the specified drawable at the specified coordinates using the specified graphics context.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign=top><em>id</em>&nbsp;</td><td>the ID of the drawable to draw the image onto </td></tr>
    <tr><td valign=top><em>gc</em>&nbsp;</td><td>the ID of the graphics context to use when drawing the image </td></tr>
    <tr><td valign=top><em>x</em>&nbsp;</td><td>the X coordinate to draw the image at relative to the drawable </td></tr>
    <tr><td valign=top><em>y</em>&nbsp;</td><td>the Y coordinate to draw the image at relative to the drawable </td></tr>
    <tr><td valign=top><em>pimage</em>&nbsp;</td><td>pointer to the image structure </td></tr>
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<a name="a22" doxytag="nano-X.h::GrEllipse"></a><p>
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          <td class="md" nowrap valign="top"> void GrEllipse </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">GR_DRAW_ID&nbsp;</td>
          <td class="mdname" nowrap> <em>id</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>GR_GC_ID&nbsp;</td>
          <td class="mdname" nowrap> <em>gc</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_SIZE&nbsp;</td>
          <td class="mdname" nowrap> <em>rx</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>GR_SIZE&nbsp;</td>
          <td class="mdname" nowrap> <em>ry</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
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<p>
Draws the boundary of ellipse at the specified position using the specified dimensions and graphics context on the specified drawable.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign=top><em>id</em>&nbsp;</td><td>the ID of the drawable to draw the ellipse on </td></tr>
    <tr><td valign=top><em>gc</em>&nbsp;</td><td>the ID of the graphics context to use when drawing the ellipse </td></tr>
    <tr><td valign=top><em>x</em>&nbsp;</td><td>the X coordinate to draw the ellipse at relative to the drawable </td></tr>
    <tr><td valign=top><em>y</em>&nbsp;</td><td>the Y coordinate to draw the ellipse at relative to the drawable </td></tr>
    <tr><td valign=top><em>rx</em>&nbsp;</td><td>the radius of the ellipse on the X axis </td></tr>
    <tr><td valign=top><em>ry</em>&nbsp;</td><td>the radius of the ellipse on the Y axis </td></tr>
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<a name="a23" doxytag="nano-X.h::GrFillEllipse"></a><p>
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          <td class="md" nowrap valign="top"> void GrFillEllipse </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">GR_DRAW_ID&nbsp;</td>
          <td class="mdname" nowrap> <em>id</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>GR_GC_ID&nbsp;</td>
          <td class="mdname" nowrap> <em>gc</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_SIZE&nbsp;</td>
          <td class="mdname" nowrap> <em>rx</em>, </td>
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          <td></td>
          <td></td>
          <td class="md" nowrap>GR_SIZE&nbsp;</td>
          <td class="mdname" nowrap> <em>ry</em></td>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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