Only one instance of program

[WP]

Hi

I have a background program that polls MQ Series for messages. I have a problem where the user starts another instance of the program which results in messages being processed twice.

I have found code that grabs the task list but this code assumes you are starting from a VB from (Form1).

Is there a way to check if the program is already in memory ?

Thanks,

WP Bill Paton
william.paton@ubsw.com

http://www.neptune400.co.uk/

Check out

http://www.deepturtle.ch

 

[sparrow]

It is not clear if you mean that the user starts a second instance of your VB Program, or a second instance of MQ Series.

However. This is the code I have in the MAIN module that starts when my users try to run my VB Executable

Dim SaveTitle As String
On Error GoTo handler
If App.PrevInstance Then
SaveTitle = App.Title
AppActivate SaveTitle
MsgBox ("Cannot Start more than one copy of Application.&quot
End
End If

 

[WP]

Hey,

I didn't realise it was thet easy !

Thank you Bill Paton
william.paton@ubsw.com

http://www.neptune400.co.uk/

Check out

http://www.deepturtle.ch