| 术语 | createroundrectrgn |
| 释义 | CreateRoundRectRgn 语法： HRGN CreateRoundRectRgn( __in int nLeftRect, __in int nTopRect, __in int nRightRect, __in int nBottomRect, __in int nWidthEllipse, __in int nHeightEllipse ); CreateRoundRectRgn函数 该CreateRoundRectRgn函数创建一个圆角矩形区域。 参数 nLeftRect [in] 指定的X坐标的设备单位区域的左上角。 nTopRect [in] 指定的y坐标的设备单位区域的左上角。 nRightRect [in] 指定的X坐标下，在设备单位区域的右上角。 nBottomRect [in] 指定的y坐标下，在设备单位区域的右上角。 nWidthEllipse [in] 指定用于创建设备单位的圆角椭圆的宽度。 nHeightEllipse [in] 指定用于创建设备单位的圆角椭圆的高度。 返回值 如果函数成功，返回值是处理该地区。 如果函数失败，返回值为NULL。 备注 当您不再需要HRGN对象调用DeleteObject函数将其删除。 地区坐标表示为27位有符号整数。 要求： 最低支持：client－Windows 2000专业版 最低支持server－Windows 2000服务器 HeaderWingdi.h(头文件：winuser.h) LibraryGdi32.lib DLLGdi32.dll 参见 地区概况 区域函数 CreatePolygonRgn CreatePolyPolygonRgn CreateRectRgn CreateRectRgnIndirect ExtCreateRegion GetRegionData DeleteObject SelectObject 如果有任何问题和意见，请发送给微软(wsddocfb@microsoft.com) 生成日期：2009年7月11日 ＝＝英文原文＝＝CreateRoundRectRgn Function The CreateRoundRectRgn function creates a rectangular region with rounded corners. Syntax HRGN CreateRoundRectRgn( __in int nLeftRect, __in int nTopRect, __in int nRightRect, __in int nBottomRect, __in int nWidthEllipse, __in int nHeightEllipse ); Parameters nLeftRect [in] Specifies the x-coordinate of the upper-left corner of the region in device units. nTopRect [in] Specifies the y-coordinate of the upper-left corner of the region in device units. nRightRect [in] Specifies the x-coordinate of the lower-right corner of the region in device units. nBottomRect [in] Specifies the y-coordinate of the lower-right corner of the region in device units. nWidthEllipse [in] Specifies the width of the ellipse used to create the rounded corners in device units. nHeightEllipse [in] Specifies the height of the ellipse used to create the rounded corners in device units. Return Value If the function succeeds, the return value is the handle to the region. If the function fails, the return value is NULL. Remarks When you no longer need the HRGN object call the DeleteObject function to delete it. Region coordinates are represented as 27-bit signed integers. Requirements Minimum supported clientWindows 2000 Professional Minimum supported serverWindows 2000 Server HeaderWingdi.h (include Windows.h) LibraryGdi32.lib DLLGdi32.dll See Also Regions Overview Region Functions CreatePolygonRgn CreatePolyPolygonRgn CreateRectRgn CreateRectRgnIndirect ExtCreateRegion GetRegionData DeleteObject SelectObject Send comments about this topic to Microsoft Build date: 7/11/2009 ＝＝原始网址＝＝http://msdn.microsoft.com/en-us/library/dd183516(VS.85).aspx\n |
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