windows编程初探

函数的定义:HWND WINAPI FindWindow(LPCSTR lpClassName ,LPCSTR lpWindowName);

 Wnd=FindWindow(NULL,"M.txt - 记事本");
    SendMessage(Wnd,WM_CLOSE,0,0); 

函数定义：LRESULT SendMessage（HWND hWnd，UINT Msg，WPARAM wParam，LPARAM IParam）