Launch only one instance of application

Posted on 2006-10-28
Last Modified: 2010-04-30
i have associated ".ctr" file with our inhouse application. when user doubleclicks the ".ctr" file our application is launched.

now if the application is already open, instead of launching a new instance, i just want to open the ".ctr" file as a 'child-window' within the already running application, how can i do this?
Question by:expertfan
  • 2
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LVL 12

Expert Comment

ID: 17828103
in the form load event check this application has previous instance or not

If App.PrevIntance Then
    'Application is already running, so open it in a child form
   'Application is not runnnig
End If

Author Comment

ID: 17828109
if app.previnstance =true, then how can i open 'new child form' in the previnstance?
LVL 12

Expert Comment

ID: 17828125

Accepted Solution

quarkphoton earned 500 total points
ID: 17831891

Author Comment

ID: 17878658
thanks quarkphoton! this works great.

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