I reaaly can use some help with "One instance"...

[Daniel_Christie]

I need to force only one instance of my Program. I have a proggie that on Form_Load it loads up another form which is placed into the Systray as an icon. I can't seem to force only one instance of my program without messing up my Icon in the systray. Currently the form that loads into the systray gets knocked out of the systray and soaks up massive system resources while is repeatedly flickers. How can a Force of "one instance", be correctly and cleanly accomplished?

(Preferablly with the least amount of coding....The proggie is starting to get seriously cluttered with code.)

I appreciate any time or efforts spent,
Daniel christie

[Razzle]

if i've understood you correctly you want to prevent that your app is started multiple times.
you need a Module with the following code:

Sub Main()
 If App.PrevInstance = True Then End
 Form1.Show
End Sub

don't forget to set Sub Main as startup "form" in the Project preferences

[Edited by Razzle on 05-06-2000 at 05:02 PM]

[Mongo]

You don't say which version you have, if Razzle's suggestion doesn't work with your version, check http://www.smithvoice.com/pvinstjp.htm for an alternate VB4/5/6 means.