# 샘플 코드
[DllImport("USER32.DLL")] public static extern uint FindWindow(string lpClassName, string lpWindowName); [DllImport("user32.dll")] public static extern uint FindWindowEx(uint hWnd1, uint hWnd2, string lpsz1, string lpsz2); [DllImport("user32.dll")] public static extern uint SendMessage(uint hwnd, uint wMsg, uint wParam, uint lParam); [DllImport("user32.dll")] public static extern uint PostMessage(uint hwnd, uint wMsg, uint wParam, uint lParam); handle = FindWindow([클래스], [캡션]); handle = FindWindowEx(handle, 0, "Button", "취소"); PostMessage(handle, 0x100, 13, 1835009); // 엔터 PostMessage(handle, 0x101, 13, 1835009); //엔터