求高人指定以下函数用法,最好能举例子,多谢
1.HWND FindWindow(LPCTSTR lpClassName, LPCTSTR lpWindowName)HWND FindWindowEx(HWND hwndParent, HWND hwndChildAfter,LPCTSTR lpClassName, LPCTSTR lpWindowName)
2.HWND WindowFromPoint(POINT& Point)
3.BOOL CALLBACK EnumChildProc(HWND hwnd,LPARAM lParam)
BOOL CALLBACK EnumChildWindows(HWND hWndParent, WNDENUMPROC lpEnumFunc,LPARAM lParam)
BOOL CALLBACK EnumWindows(WNDENUMPROC lpEnumFunc, LPARAM lParam)
BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lParam)
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