/// <summary> /// 跨进程,向指定窗口发送WM_COPYDATA消息 /// </summary> /// <param name="lpWindowName">窗口标题</param> /// <param name="flag">区分标记</param> /// <param name="data">要发送的字符串数据</param> public static void SendCopyData(string lpWindowName, int flag, string data) { IntPtr hWnd = UnsafeNativeMethods.FindWindow(null, lpWindowName); if (hWnd == IntPtr.Zero) { return; } byte[] arr = Encoding.UTF8.GetBytes(data); NativeMethods.COPYDATASTRUCT cds = new NativeMethods.COPYDATASTRUCT(); cds.dwData = flag; cds.cbData = arr.Length + 1; cds.lpData = data; UnsafeNativeMethods.SendMessage(hWnd, NativeMethods.WM_COPYDATA, IntPtr.Zero, ref cds); }