group__draw__fns.htm

MINIGUI1.6开发API

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The type of ellipse generator callback. 
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Definition at line <a class="el" href="gdi_8h-source.htm#l02877">2877</a> of file <a class="el" href="gdi_8h-source.htm">gdi.h</a>.    </td>
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<a class="anchor" name="ga5" doxytag="gdi.h::CB_EQUAL_PIXEL"></a><p>
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          <td class="md" nowrap valign="top">typedef <a class="el" href="group__simple__types.htm#ga0">BOOL</a>(* <a class="el" href="group__draw__fns.htm#ga5">CB_EQUAL_PIXEL</a>)(void *context, int x, int y)          </td>
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Flodd filling generator's equation callback. 
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Definition at line <a class="el" href="gdi_8h-source.htm#l03046">3046</a> of file <a class="el" href="gdi_8h-source.htm">gdi.h</a>.    </td>
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<a class="anchor" name="ga6" doxytag="gdi.h::CB_FLOOD_FILL"></a><p>
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          <td class="md" nowrap valign="top">typedef void(* <a class="el" href="group__draw__fns.htm#ga6">CB_FLOOD_FILL</a>)(void *context, int x1, int x2, int y)          </td>
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Flodd filling generator's scan line callback. 
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Definition at line <a class="el" href="gdi_8h-source.htm#l03052">3052</a> of file <a class="el" href="gdi_8h-source.htm">gdi.h</a>.    </td>
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<a class="anchor" name="ga7" doxytag="gdi.h::CB_GET_LINE_BUFF"></a><p>
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          <td class="md" nowrap valign="top">typedef void *(* <a class="el" href="group__draw__fns.htm#ga7">CB_GET_LINE_BUFF</a>)(void *context, int y)          </td>
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Bitmap scaler's getting line buffer callback. 
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Definition at line <a class="el" href="gdi_8h-source.htm#l03084">3084</a> of file <a class="el" href="gdi_8h-source.htm">gdi.h</a>.    </td>
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<a class="anchor" name="ga0" doxytag="gdi.h::CB_LINE"></a><p>
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          <td class="md" nowrap valign="top">typedef void(* <a class="el" href="group__draw__fns.htm#ga0">CB_LINE</a>)(void *context, int stepx, int stepy)          </td>
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The type of line generator callback. 
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Definition at line <a class="el" href="gdi_8h-source.htm#l02806">2806</a> of file <a class="el" href="gdi_8h-source.htm">gdi.h</a>.    </td>
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<a class="anchor" name="ga8" doxytag="gdi.h::CB_LINE_SCALED"></a><p>
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          <td class="md" nowrap valign="top">typedef void *(* <a class="el" href="group__draw__fns.htm#ga8">CB_LINE_SCALED</a>)(void *context, const void *line, int y)          </td>
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Bitmap scaler's getting line buffer callback. 
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Definition at line <a class="el" href="gdi_8h-source.htm#l03090">3090</a> of file <a class="el" href="gdi_8h-source.htm">gdi.h</a>.    </td>
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<a class="anchor" name="ga4" doxytag="gdi.h::CB_POLYGON"></a><p>
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          <td class="md" nowrap valign="top">typedef void(* <a class="el" href="group__draw__fns.htm#ga4">CB_POLYGON</a>)(void *context, int x1, int x2, int y)          </td>
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The type of polygon generator callback. 
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Definition at line <a class="el" href="gdi_8h-source.htm#l02946">2946</a> of file <a class="el" href="gdi_8h-source.htm">gdi.h</a>.    </td>
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<hr><h2>Function Documentation</h2>
<a class="anchor" name="ga30" doxytag="gdi.h::BitmapDDAScaler"></a><p>
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          <td class="md" nowrap valign="top"><a class="el" href="group__simple__types.htm#ga0">BOOL</a> GUIAPI BitmapDDAScaler           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">void *&nbsp;</td>
          <td class="mdname" nowrap> <em>context</em>, </td>
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          <td class="md" nowrap>const <a class="el" href="struct__BITMAP.htm">BITMAP</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>src_bmp</em>, </td>
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          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>dst_w</em>, </td>
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          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>dst_h</em>, </td>
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          <td class="md" nowrap><a class="el" href="group__draw__fns.htm#ga7">CB_GET_LINE_BUFF</a>&nbsp;</td>
          <td class="mdname" nowrap> <em>cb_get_line_buff</em>, </td>
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          <td class="md" nowrap><a class="el" href="group__draw__fns.htm#ga8">CB_LINE_SCALED</a>&nbsp;</td>
          <td class="mdname" nowrap> <em>cb_line_scaled</em></td>
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          <td class="md">)&nbsp;</td>
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A bitmap scaler using DDA algorithm. 
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This function is a general bitmap scaler using DDA algorithm. This function scales the bitmap from bottom to top.<p>
MiniGUI implements ScaleBitmap, FillBoxWithBitmap, FillBoxWithBitmapPart, and StretchBlt functions by using this scaler.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>context</em>&nbsp;</td><td>The context will be passed to the callbacks. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>src_bmp</em>&nbsp;</td><td>The source BITMAP object. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>dst_w</em>&nbsp;</td><td>The width of the destination BITMAP object. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>dst_h</em>&nbsp;</td><td>The height of the destination BITMAP object. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>cb_get_line_buff</em>&nbsp;</td><td>The callback to get the line buffer of the destination BITMAP object. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>cb_line_scaled</em>&nbsp;</td><td>The callback to tell the line is scaled.</td></tr>
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<dl compact><dt><b>Note:</b></dt><dd>Only defined for _USE_NEWGAL</dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__bmp__fns.htm#ga5">ScaleBitmap</a>, <a class="el" href="group__bmp__fns.htm#ga4">StretchBlt</a>, <a class="el" href="group__draw__fns.htm#ga31">BitmapDDAScaler2</a> </dd></dl>