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bohut 2004-08-17
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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.
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.
huaboy408 2004-08-17
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获取指向父类的指针
