Terminate app after creating a new process
Posted on 2000-05-17
I have an MFC program running on hundreds of machines in a factory. I want to add the capability for the program to automatically update itself when a new version comes out. The program is running off the local system hard disk as opposed to off a server. However, all machines can access a disk on a remote server.
When a certain event occurs I want the program to go out to this server and see if a new version of itself is out there. If so, this program will spawn a new program and then kill itself. This new program will copy the updated version of the other program to the local disk, start it ip and then kill itself. Voila, I will have updated the entire factory. Or so I hope.
Here, in 2 lines of code or less is what I am trying to do:
if( CreateProcess( NULL, "AnApp.exe", ..., &StartupInfo, &ProcInfo ) )
AfxGetApp()->m_pMainWnd->SendMessage( WM_CLOSE );
The results are:
The destructor of my app's document class is called, but not the ExitInstance() function of the app. Also, if running in VC++ debug environment the debug program doesn't close until I close the app that was spawned (I'm actually using CALC.EXE for testing purposes). Then when the app closes, my debug log reports memory leaks.
Is there a problem with how I am closing my application (that is what CWinApp::OnAppExit() does), and/or is there some option in CreateProcess() that I need to make sure is properly set? Or is there a completely different and better way to do this?
Thanks much for your time,