[DllImport('coredll.dll', EntryPoint = 'FindWindow')] public static extern int FindWindow( string lpWindowName, string lpClassName ); [DllImport('coredll.dll', EntryPoint = 'ShowWindow')] public static extern int ShowWindow( int hwnd, int nCmdShow ); public const int SW_SHOW = 5; //显示窗口常量 public const int SW_HIDE = 0; //隐藏窗口常量