用C#实现启动另一程序的方法实例

　　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);
　　}
　　}