group__bmp__load__fns.htm

MINIGUI1.6开发API

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          <td class="md" nowrap><a class="el" href="struct__MYBITMAP.htm">MYBITMAP</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>my_bmp</em>, </td>
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          <td class="md"></td>
          <td class="md" nowrap><a class="el" href="group__bmp__load__fns.htm#ga0">CB_ONE_SCANLINE</a>&nbsp;</td>
          <td class="mdname" nowrap> <em>cb</em>, </td>
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          <td class="md"></td>
          <td class="md" nowrap>void *&nbsp;</td>
          <td class="mdname" nowrap> <em>context</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Loads MYBITMAP scanlines from a data source one by one. 
<p>
This function loads MYBITMAP scanlines from the data source <em>area</em> one by one.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>area</em>&nbsp;</td><td>The data source. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>load_info</em>&nbsp;</td><td>The initialized information retured by InitMyBitmapSL function. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>my_bmp</em>&nbsp;</td><td>The pointer to the MYBITMAP object. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>cb</em>&nbsp;</td><td>The callback to inform one scanline loaded. It can be NULL. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>context</em>&nbsp;</td><td>The context information passed to the callback. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>0 on success, less than 0 on error.</dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__bmp__load__fns.htm#ga15">LoadMyBitmapEx</a>, <a class="el" href="group__bmp__load__fns.htm#ga12">InitMyBitmapSL</a>, <a class="el" href="group__bmp__load__fns.htm#ga14">CleanupMyBitmapSL</a> </dd></dl>
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<a class="anchor" name="ga31" doxytag="gdi.h::PaintImageEx"></a><p>
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          <td class="md" nowrap valign="top">int GUIAPI PaintImageEx           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="group__handles.htm#ga2">HDC</a>&nbsp;</td>
          <td class="mdname" nowrap> <em>hdc</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>x</em>, </td>
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          <td class="md"></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>y</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap><a class="el" href="struct__MG__RWops.htm">MG_RWops</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>area</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>ext</em></td>
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          <td class="md"></td>
          <td class="md">)&nbsp;</td>
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<p>
Paints an image from data source on device directly. 
<p>
This function paints an image from data source onto device directly.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>hdc</em>&nbsp;</td><td>The device context. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>x</em>&nbsp;</td><td>(x,y), the paint position on device. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>y</em>&nbsp;</td><td>(x,y), the paint position on device. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>area</em>&nbsp;</td><td>The data source. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ext</em>&nbsp;</td><td>The extension of the type of this bitmap.</td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>0 on success, less than 0 on error.</dd></dl>
<dl compact><dt><b>Return values:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_OK</em>&nbsp;</td><td>Painted successfully </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_IMAGE_TYPE</em>&nbsp;</td><td>Not a valid image type. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_UNKNOWN_TYPE</em>&nbsp;</td><td>Not recongnized bitmap type. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_CANT_READ</em>&nbsp;</td><td>Read error. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_NOT_SUPPORTED</em>&nbsp;</td><td>Not supported bitmap type. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_MEM</em>&nbsp;</td><td>Memory allocation error. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_LOAD</em>&nbsp;</td><td>Loading error. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_FILEIO</em>&nbsp;</td><td>I/O failed. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_OTHER</em>&nbsp;</td><td>Other error. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ERR_BMP_ERROR_SOURCE</em>&nbsp;</td><td>A error data source.</td></tr>
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<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__bmp__load__fns.htm#ga32">PaintImageFromFile</a>, <a class="el" href="group__bmp__load__fns.htm#ga33">PaintImageFromMem</a> </dd></dl>
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<a class="anchor" name="ga32" doxytag="gdi.h::PaintImageFromFile"></a><p>
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          <td class="md" nowrap valign="top">int GUIAPI PaintImageFromFile           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="group__handles.htm#ga2">HDC</a>&nbsp;</td>
          <td class="mdname" nowrap> <em>hdc</em>, </td>
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          <td class="md"></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>x</em>, </td>
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          <td class="md"></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>y</em>, </td>
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          <td class="md" nowrap>const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>spFileName</em></td>
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<p>
Paints an image from file on device directly. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>hdc</em>&nbsp;</td><td>The device context. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>x</em>&nbsp;</td><td>(x,y), the paint position on device. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>y</em>&nbsp;</td><td>(x,y), the paint position on device. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>spFileName</em>&nbsp;</td><td>The file name of the image file.</td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>0 on success, less than 0 on error.</dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__bmp__load__fns.htm#ga31">PaintImageEx</a> </dd></dl>
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<a class="anchor" name="ga33" doxytag="gdi.h::PaintImageFromMem"></a><p>
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          <td class="md" nowrap valign="top">int GUIAPI PaintImageFromMem           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="group__handles.htm#ga2">HDC</a>&nbsp;</td>
          <td class="mdname" nowrap> <em>hdc</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>x</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>y</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>const void *&nbsp;</td>
          <td class="mdname" nowrap> <em>mem</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>size</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>ext</em></td>
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