static void Main(string[] args)
{
string CurrentDirectory = System.Environment.CurrentDirectory.Replace("MessageCommunicationA", _messageTo);
bool isStart = false;
foreach (Process p in Process.GetProcessesByName(_messageTo))
{
isStart = true;
WinMessageHelper.Send(p.MainWindowHandle.ToInt32(), _messageStr);
}
if (!isStart)
{
System.Diagnostics.Process process = new System.Diagnostics.Process();
process.StartInfo.FileName = _messageTo + ".exe";
process.StartInfo.WorkingDirectory = CurrentDirectory;
process.StartInfo.CreateNoWindow = false;
process.Start();
process.WaitForInputIdle();
System.Threading.Thread.Sleep(2000); //增加了延时2秒，这样就可以获取计算器的窗口句柄
foreach (Process p in Process.GetProcessesByName(_messageTo))
{
WinMessageHelper.Send(p.MainWindowHandle.ToInt32(), _messageStr);
}
}
}
protected override void DefWndProc(ref System.Windows.Forms.Message m)
{
switch (m.Msg)
{
case WinMessageHelper.WM_COPYDATA:
string str = WinMessageHelper.Receive(ref m);
if (str == "close")
{
Application.Exit();
Environment.Exit(0);
}
else
{
MessageBox.Show(str);
MessageBox.Show(m.Msg.ToString());
}
break;
default:
base.DefWndProc(ref m);
break;
}
}
