术语 | getparent |
释义 | GetParent 语法: HWND GetParent( HWND hWnd ); GetParent函数 该GetParent函数检索的句柄指定的窗口的父母或所有者。 要检索的句柄指定的祖先,使用GetAncestor函数。 参数 hWnd [in]句柄窗口的父窗口句柄是要检索。 返回值 如果窗口是一个子窗口,返回值是一个句柄父窗口。如果窗口是顶层窗口,返回值是一个句柄所有者窗口。如果窗口是顶层无主窗口或如果函数失败,返回值为NULL。为了获得更多错误信息,调用GetLastError。例如,这将决定,当函数返回NULL,如果函数失败或窗口是一个顶层窗口。 备注 请注意,尽管它的名字,这个函数可以返回一个所有者窗口而不是父窗口。要获取父窗口,而不是与GA_PARENT标志所有人,使用GetLastError。 例如 有关示例,请参阅初始化一个对话框。 功能信息 最低DLL版本 user32.dll 在Winuser.h中HeaderDeclared,头文件:winuser.h import libraryUser32.lib 最低操作系统Windows 95,Windows NT 3.1 参见 视窗概述,GetAncestor,SetParent ==英文原文==GetParent Function The GetParent function retrieves a handle to the specified window's parent or owner. To retrieve a handle to a specified ancestor, use the GetAncestor function. Syntax HWND GetParent( HWND hWnd ); Parameters hWnd [in] Handle to the window whose parent window handle is to be retrieved. Return Value If the window is a child window, the return value is a handle to the parent window. If the window is a top-level window, the return value is a handle to the owner window. If the window is a top-level unowned window or if the function fails, the return value is NULL. To get extended error information, call GetLastError . For example, this would determine, when the function returns NULL, if the function failed or the window was a top-level window. Remarks Note that, despite its name, this function can return an owner window instead of a parent window. To obtain the parent window and not the owner, use GetLastError with the GA_PARENT flag. Example For an example, see Initializing a Dialog Box . Function Information Minimum DLL Versionuser32.dll HeaderDeclared in Winuser.h, include Windows.h Import libraryUser32.lib Minimum operating systemsWindows 95, Windows NT 3.1 See Also Windows Overview , GetAncestor , SetParent ==原始网址==http://msdn.microsoft.com/en-us/library/ms633510(VS.85).aspx\n |
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