术语 | createellipticrgnindirect |
释义 | CreateEllipticRgnIndirect 语法: HRGN CreateEllipticRgnIndirect( __in const RECT *lprc ); CreateEllipticRgnIndirect功能 该CreateEllipticRgnIndirect函数创建一个椭圆形区域。 参数 利比里亚炼油公司 [in] 指针RECT结构,它包含的坐标左上角的较低的逻辑单位椭圆边界矩形右下角。 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。 阿边界矩形定义的大小,形状,以及该地区的方向:矩形的长边界定椭圆的长轴长度;的短边确定椭圆的短轴长度,以及矩形的中心定义相交的主要和次要轴线。 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 CreateEllipticRegn DeleteObject RECT 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==CreateEllipticRgnIndirect Function The CreateEllipticRgnIndirect function creates an elliptical region. Syntax HRGN CreateEllipticRgnIndirect( __in const RECT *lprc ); Parameters lprc [in] Pointer to a RECT structure that contains the coordinates of the upper-left and lower-right corners of the bounding rectangle of the ellipse in logical 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. A bounding rectangle defines the size, shape, and orientation of the region: The long sides of the rectangle define the length of the ellipse's major axis; the short sides define the length of the ellipse's minor axis; and the center of the rectangle defines the intersection of the major and minor axes. 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 CreateEllipticRegn DeleteObject RECT SelectObject Send comments about this topic to Microsoft Build date: 7/11/2009 ==原始网址==http://msdn.microsoft.com/en-us/library/dd183497(VS.85).aspx\n |
随便看 |
|
windows api函数参考手册包含2258条windows api函数文档,详细介绍nodejs、java、rust调用windows api的方法技巧,是学习windows api编程的入门中文文档。