private void btnCreate_Click(object sender, EventArgs e)
　　...{
　　int hWnd = FindWindow(null, "test");//窗體的名稱
　　//check if PowerReuse is launched or not
　　//if yes, pass path of project to PowerReuse
　　//or, launch PowerReuse with specified parameter
　　if (hWnd > 0)
　　...{
　　MessageBox.Show("powerReuse has been launched already." + " " + hWnd.ToString());
　　//SendMessage to PowerReuse
　　return;
　　}
　　try
　　...{
　　Process Main_P = new Process();
　　//this path should be retrieved from Windows Registry,
　　//the loaction is written by Installter during process of installation.
　　Main_P.StartInfo.FileName = @"C: est.exe";//運行的exe路徑
　　//This URL is passed to PowerReuse to open
　　Main_P.StartInfo.Arguments = @"C:Tempabc.prj";//運行時的參數
　　Main_P.StartInfo.UseShellExecute = true;
　　Main_P.Start();
　　//
　　//we have to wait for a while until UI has been initialized
　　//
　　Main_P.WaitForInputIdle(10000);
　　//although UI has been initialzied,
　　//it does not mean main form of application has been completed.
　　//we may wait for another 10 seconds
　　for (int i = 0; i < 100; i++)
　　...{
　　hWnd = FindWindow(null, "PowerReuse (Beta)");
　　//hWnd = Main_P.MainWindowHandle.ToInt32() ;
　　if (hWnd > 0) break;
　　Thread.Sleep(100);
　　}
　　//Here, we check if PowerReuse is fully launched
　　if (hWnd == 0)
　　...{
　　//Handle exception
　　MessageBox.Show("We cannot find window handle of PowerReuse");
　　}
　　else
　　...{
　　//other handling
　　//
　　MessageBox.Show(hWnd.ToString() + " " + Main_P.MainWindowHandle.ToString() + " " + Main_P.MainWindowTitle);
　　}
　　}
　　catch (Exception ex)
　　...{
　　MessageBox.Show(ex.Message);
　　}
　　}