group__map__fns.htm

MINIGUI1.6开发API

<p>
Definition at line <a class="el" href="gdi_8h-source.htm#l04177">4177</a> of file <a class="el" href="gdi_8h-source.htm">gdi.h</a>.    </td>
  </tr>
</table>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="ga2" doxytag="gdi.h::DPtoLP"></a><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top">void GUIAPI DPtoLP           </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>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap><a class="el" href="struct__POINT.htm">POINT</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>pPt</em></td>
        </tr>
        <tr>
          <td class="md"></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Converts device coordinates into logical coordinates. 
<p>
This function converts device coordinates into logical coordinates in the device context <em>hdc</em>.<p>
The conversion depends on the mapping mode of the display context, the settings of the origins and extents for the window and viewport. The x-coordinate and y-coordinate contained in struct <em>pPt</em> will be transformed.<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>pPt</em>&nbsp;</td><td>The coordinates to be converted, and the transformed coordinates will be contained in this buffer after the function returns.</td></tr>
  </table>
</dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__map__fns.htm#ga3">LPtoDP</a> </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga0" doxytag="gdi.h::GetDCLCS"></a><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top">void GUIAPI GetDCLCS           </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>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>which</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap><a class="el" href="struct__POINT.htm">POINT</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>pt</em></td>
        </tr>
        <tr>
          <td class="md"></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Retrieves mapping parameters of a device context. 
<p>
This function retrieves mapping paramters of the specified device context <em>hdc</em> when the mapping mode is not <em>MM_TEXT</em>.<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>which</em>&nbsp;</td><td>Which parameter you want to retrieve, can be one of the following values:</td></tr>
  </table>
</dl>
<ul>
<li>DC_LCS_VORG<br>
 Retrieves the x-coordinates and y-coordinates of the viewport origin.</li><li>DC_LCS_VEXT<br>
 Retrieves the x-extents and y-extents of the current viewport.</li><li>DC_LCS_WORG<br>
 Retrieves the x-coordinates and y-coordinates of the window origin.</li><li>DC_LCS_WEXT<br>
 Retrieves the x-extents and y-extents of the window.</li></ul>
<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>pt</em>&nbsp;</td><td>The coordinates or extents will be returned through this buffer.</td></tr>
  </table>
</dl>
<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__map__fns.htm#ga6">GetMapMode</a>, <a class="el" href="group__map__fns.htm#ga7">SetMapMode</a>, <a class="el" href="group__map__fns.htm#ga1">SetDCLCS</a> </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga3" doxytag="gdi.h::LPtoDP"></a><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top">void GUIAPI LPtoDP           </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>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap><a class="el" href="struct__POINT.htm">POINT</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>pPt</em></td>
        </tr>
        <tr>
          <td class="md"></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Converts logical coordinates into device coordinates. 
<p>
This function converts logical coordinates into device coordinates in the device context <em>hdc</em>.<p>
The conversion depends on the mapping mode of the display context, the settings of the origins and extents for the window and viewport. The x-coordinate and y-coordinate contained in struct <em>pPt</em> will be transformed.<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>pPt</em>&nbsp;</td><td>The coordinates to be converted, and the transformed coordinates will be contained in this buffer after the function returns.</td></tr>
  </table>
</dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__map__fns.htm#ga2">DPtoLP</a> </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga1" doxytag="gdi.h::SetDCLCS"></a><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td class="md" nowrap valign="top">void GUIAPI SetDCLCS           </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>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>which</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>const <a class="el" href="struct__POINT.htm">POINT</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>pt</em></td>
        </tr>
        <tr>
          <td class="md"></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>
Sets mapping parameters of a device context. 
<p>
This function sets mapping paramters of the specified device context <em>hdc</em> when the mapping mode is not <em>MM_TEXT</em>.<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>which</em>&nbsp;</td><td>Which parameter you want to retrieve, can be one of the following values:</td></tr>
  </table>
</dl>
<ul>
<li>DC_LCS_VORG<br>
 Sets the x-coordinates and y-coordinates of the viewport origin.</li><li>DC_LCS_VEXT<br>
 Sets the x-extents and y-extents of the current viewport.</li><li>DC_LCS_WORG<br>
 Sets the x-coordinates and y-coordinates of the window origin.</li><li>DC_LCS_WEXT<br>
 Sets the x-extents and y-extents of the window.</li></ul>
<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>pt</em>&nbsp;</td><td>The coordinates or extents will be set.</td></tr>
  </table>
</dl>
<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__map__fns.htm#ga6">GetMapMode</a>, <a class="el" href="group__map__fns.htm#ga7">SetMapMode</a>, <a class="el" href="group__map__fns.htm#ga0">GetDCLCS</a> </dd></dl>
    </td>
  </tr>
</table>
<hr size="1"><address style="align: right;"><small>Generated on Thu Nov 22 15:35:54 2007 for MiniGUI V1.6.10 API Reference by&nbsp;
<a href="http://www.doxygen.org/index.html">
<img src="http://www.minigui.com/api_ref/1.6.10/doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address>
</body>
</html>