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绘制椭圆弧
[helpstring("method DrawEllipseArc")] HRESULT DrawEllipseArc([in] DOUBLE dCenterX, [in] DOUBLE dCenterY, [in] DOUBLE dMajorAxisX, [in] DOUBLE dMajorAxisY, [in] DOUBLE dRadiusRatio, [in] DOUBLE dStartAng, [in] DOUBLE dEndAng, [out,retval] VARIANT_BOOL* pRet);
参数 |
说明 |
[in] DOUBLE dCenterX |
椭圆的中心点X坐标 |
[in] DOUBLE dCenterY |
椭圆的中心点Y坐标 |
[in] DOUBLE dMajorAxisX |
椭圆的主轴向量X值 |
[in] DOUBLE dMajorAxisY |
椭圆的主轴向量Y值 |
[in] DOUBLE dRadiusRatio |
椭圆的副轴长度与主轴长度的比值 |
[in] DOUBLE dStartAng |
椭圆弧的开始角度 |
[in] DOUBLE dEndAng |
椭圆弧的结束角度 |