📄 createellipticrgn.htm
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<td width="100%" height="16">CreateEllipticRgn</td>
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<td width="100%" colspan="2">VB声明</td>
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<td width="100%" colspan="2">Declare Function CreateEllipticRgn Lib "gdi32"
Alias "CreateEllipticRgn" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long,
ByVal Y2 As Long) As Long</td>
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<td width="100%" colspan="2">说明</td>
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<td width="100%" colspan="2">创建一个椭圆，该椭圆与X1，Y1和X2，Y2坐标点确定的矩形内切</td>
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<td width="100%" colspan="2">返回值</td>
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<td width="100%" colspan="2">Long，执行成功则为区域句柄，失败则为零</td>
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<td width="100%" colspan="2">参数表</td>
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<td width="25%">参数</td>
<td width="75%">类型及说明</td>
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<td width="25%">X1,Y1</td>
<td width="75%">Long，矩形左上角X，Y坐标</td>
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<td width="25%">X2,Y2</td>
<td width="75%">Long，矩形右下角X，Y坐标</td>
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<td width="100%" colspan="2">注解</td>
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<td width="100%" colspan="2"><p align="left">不用时一定要用<a
href="DeleteObject.htm">DeleteObject</a>函数删除区域。用<a href="Ellipse.htm">Ellipse</a>
API函数绘出的椭圆与该椭圆区域不完全相同，因为本函数的绘图计算不包括矩形的下边和右边</td>
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