group__draw__fns.htm

MINIGUI1.6开发API

          <td class="mdname" nowrap> <em>ry</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>
Draws a ellipse. 
<p>
This function draws an ellipse with the zero pen on the DC <em>hdc</em>. The center of the ellipse is at <em></em>(sx, sy), the x-coordinate radius is <em>rx</em>, and the y-coordinate radius is <em>ry</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>sx</em>&nbsp;</td><td>sx,sy: The center of the ellipse. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>sy</em>&nbsp;</td><td>sx,sy: The center of the ellipse. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>rx</em>&nbsp;</td><td>The x-coordinate radius of the ellipse. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ry</em>&nbsp;</td><td>The y-coordinate radius of the ellipse.</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__draw__fns.htm#ga24">EllipseGenerator</a>, <a class="el" href="group__dc__attrs.htm">DC attribute operations</a> </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga24" doxytag="gdi.h::EllipseGenerator"></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 EllipseGenerator           </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>
        </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>sx</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>sy</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>rx</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>ry</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap><a class="el" href="group__draw__fns.htm#ga2">CB_ELLIPSE</a>&nbsp;</td>
          <td class="mdname" nowrap> <em>cb</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>
An ellipse generator. 
<p>
This is a general ellipse generator, it will generate two points on the same horizontal scan line at every turn. When it generates the points on the ellipse, it will call the callback <em>cb</em> and pass the context <em>context</em>, the y-coordinate of the scan line, the x-coordinate of the left point on the scan line, and the x-coordinate of the right point. Note that in some cases, the left point and the right point will be the same.<p>
MiniGUI implements <em>Ellipse</em>, <em>FillEllipse</em>, and <em>InitEllipseRegion</em> functions by using this generator.<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>context</em>&nbsp;</td><td>The context, will be passed to the callback <em>cb</em>. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>sx</em>&nbsp;</td><td>sx,sy: The center of the ellipse. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>sy</em>&nbsp;</td><td>sx,sy: The center of the ellipse. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>rx</em>&nbsp;</td><td>The x-radius of the ellipse. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>ry</em>&nbsp;</td><td>The y-radius of the ellipse. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>cb</em>&nbsp;</td><td>The ellipse generator callback.</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__draw__fns.htm#ga38">Ellipse</a>, <a class="el" href="group__draw__fns.htm#ga42">FillEllipse</a>, <a class="el" href="group__region__fns.htm#ga24">InitEllipseRegion</a>, <a class="el" href="group__draw__fns.htm#ga1">CB_CIRCLE</a> </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga40" doxytag="gdi.h::FillBox"></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 FillBox           </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>x</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>y</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>w</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>h</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>
Fills a rectangle box. 
<p>
This function fills a box with the current brush in the DC <em>hdc</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>x</em>&nbsp;</td><td>x,y: The coorinates of the upper-left corner of the box. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>y</em>&nbsp;</td><td>x,y: The coorinates of the upper-left corner of the box. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>w</em>&nbsp;</td><td>The width of the box. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>h</em>&nbsp;</td><td>The height of the box.</td></tr>
  </table>
</dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="group__dc__attrs.htm">DC attribute operations</a> </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga41" doxytag="gdi.h::FillCircle"></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 FillCircle           </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>sx</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>sy</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>r</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>
Fills a circle. 
<p>
This function fills a circle with the current brush in the DC <em>hdc</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>sx</em>&nbsp;</td><td>sx,sy: The center of the circle. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>sy</em>&nbsp;</td><td>sx,sy: The center of the circle. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>r</em>&nbsp;</td><td>The radius of the circle.</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__draw__fns.htm#ga23">CircleGenerator</a>, <a class="el" href="group__dc__attrs.htm">DC attribute operations</a> </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="ga42" doxytag="gdi.h::FillEllipse"></a><p>
<table class="mdTable" cellpadding="2" cellspacing=