术语 | clienttoscreen |
释义 | ClientToScreen 语法: BOOL ClientToScreen( __in HWND hWnd, __inout LPPOINT lpPoint ); ClientToScreen函数 功能转换的ClientToScreen客户区的指定点坐标屏幕坐标。 参数 hWnd [in] 一个句柄,的客户面积为转换使用窗口。 lpPoint [ in , out ] 一个点结构,它包含了客户端指针坐标转换。新的屏幕坐标复制到这种结构如果函数成功。 返回值 如果函数成功,返回值为非零。 如果函数失败,返回值是零。 备注 该ClientToScreen函数替换客户端区在与屏幕坐标点结构的坐标。屏幕坐标是相对于左上角的屏幕一角。请注意,屏幕坐标点以上窗口的客户区是有负面的Y坐标。同样,屏幕坐标到一个客户区左侧有负面的x坐标。 所有的坐标设备坐标。 实例 有关示例,请参见“使用鼠标画线”,在使用鼠标输入。 要求: 最低支持:client-Windows 2000专业版 最低支持server-Windows 2000服务器 HeaderWinuser.h(头文件:winuser.h) LibraryUser32.lib DLLUser32.dll 参见 坐标空间和转换概述 坐标空间与变换函数 MapWindowPoints 点 ScreenToClient 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==ClientToScreen Function The ClientToScreen function converts the client-area coordinates of a specified point to screen coordinates. Syntax BOOL ClientToScreen( __in HWND hWnd, __inout LPPOINT lpPoint ); Parameters hWnd [in] A handle to the window whose client area is used for the conversion. lpPoint [in, out] A pointer to a POINT structure that contains the client coordinates to be converted. The new screen coordinates are copied into this structure if the function succeeds. Return Value If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. Remarks The ClientToScreen function replaces the client-area coordinates in the POINT structure with the screen coordinates. The screen coordinates are relative to the upper-left corner of the screen. Note, a screen-coordinate point that is above the window's client area has a negative y-coordinate. Similarly, a screen coordinate to the left of a client area has a negative x-coordinate. All coordinates are device coordinates. Examples For an example, see "Drawing Lines with the Mouse" in Using Mouse Input . Requirements Minimum supported clientWindows 2000 Professional Minimum supported serverWindows 2000 Server HeaderWinuser.h (include Windows.h) LibraryUser32.lib DLLUser32.dll See Also Coordinate Spaces and Transformations Overview Coordinate Space and Transformation Functions MapWindowPoints POINT ScreenToClient Send comments about this topic to Microsoft Build date: 7/11/2009 ==原始网址==http://msdn.microsoft.com/en-us/library/dd183434(VS.85).aspx\n |
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