msdn: CWnd::GetWindow CWnd* GetWindow( UINT nCmd ) const;Return ValueReturns a pointer to the window requested, or NULL if none. The returned pointer may be temporary and should not be stored for later use.ParametersnCmdSpecifies the relationship between CWnd and the returned window. It can take one of the following values: GW_CHILD Identifies the CWnd first child window. GW_HWNDFIRST If CWnd is a child window, returns the first sibling window. Otherwise, it returns the first top-level window in the list. GW_HWNDLAST If CWnd is a child window, returns the last sibling window. Otherwise, it returns the last top-level window in the list. GW_HWNDNEXT Returns the next window on the window manager’s list. GW_HWNDPREV Returns the previous window on the window manager’s list. GW_OWNER Identifies the CWnd owner.
CWnd::GetWindow
CWnd* GetWindow( UINT nCmd ) const;Return ValueReturns a pointer to the window requested, or NULL if none. The returned pointer may be temporary and should not be stored for later use.ParametersnCmdSpecifies the relationship between CWnd and the returned window. It can take one of the following values: GW_CHILD Identifies the CWnd first child window.
GW_HWNDFIRST If CWnd is a child window, returns the first sibling window. Otherwise, it returns the first top-level window in the list.
GW_HWNDLAST If CWnd is a child window, returns the last sibling window. Otherwise, it returns the last top-level window in the list.
GW_HWNDNEXT Returns the next window on the window manager’s list.
GW_HWNDPREV Returns the previous window on the window manager’s list.
GW_OWNER Identifies the CWnd owner.
BOOL EnumWindows(
WNDENUMPROC lpEnumFunc, // 回调函数的指针
LPARAM lParam // 应用程序定义的值
);
上面的函数中所用的回调函数
BOOL CALLBACK EnumWindowsProc(
HWND hwnd, // 父窗口句柄
LPARAM lParam // 应用程序定义的值
);
枚举子窗口
BOOL EnumChildWindows(
HWND hWndParent, // 父窗口句柄
WNDENUMPROC lpEnumFunc, // 回调函数的指针
LPARAM lParam // 应用程序定义的值
);
上面的函数中用到的回调函数
BOOL CALLBACK EnumChildProc(
HWND hwnd, // 子窗口句柄
LPARAM lParam // 应用程序定义的值
);
具体应用,看一下MSDN吧!
希望对你有帮助!