My code looks something like this:
I am using Process to start a console program. What this console program does is, it would detect whether a particular device is connected via usb, and tries to read some block of data. But the problem is, when no devices are connected, it is giving an unhandled exception(this is thrown by the console_program. Not my WinForm program). When a device is connected, no problem is there !
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myProcess As New Process
myProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
myProcess.StartInfo.CreateNoWindow = True
myProcess.StartInfo.WorkingDirectory = "X:\folder\where\console\program\resides"
myProcess.StartInfo.FileName = "third_party_console_program.exe"
myProcess.StartInfo.Arguments = "some: arguments goes here"
I think it is probably trying to read from the usb, even when it doesn't detect any device. Since this console app is of a third party program, I couldn't do anything on it.
Instead what I am trying to do is, to catch the unhandled exception and output the message "Couldn't detect the device !"
But the normal Try..Catch block covered on the above piece of code won't work as I think the exception is thrown on a separate thread.
Any ideas on how to catch this ? Any tips or suggestions would be very helpful.