Find out if application is running

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GeorgeMar - 27 Feb 2005 01:23 GMT

I have an Access application that runs a VB application called "SISComm.exe".
I want to prevent users from running the VB appliction if it is already
running.

I am using FindWindow API from the Microsoft explanation in Knowledge Base.

I have lpWindowName set as a const="SISComm"

I keep getting 0 even when the application is open.

Microsoft lists the Class Name and Application Name for its Windows
applications, what is the lpClassName or lpWindowName for my application?

Many thanks
george

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Douglas J. Steele - 27 Feb 2005 12:17 GMT

Take a look at http://www.mvps.org/access/api/api0013.htm at "The Access
Web" for how to determine the class name of all running applications. Use
that when SISComm is running, and you should be set.

Signature

Doug Steele, Microsoft Access MVP
http://I.Am/DougSteele
(no e-mails, please!)

>I have an Access application that runs a VB application called
>"SISComm.exe".
[quoted text clipped - 13 lines]
> Many thanks
> george

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GeorgeMar - 27 Feb 2005 19:19 GMT

Thank you Doug

It is working fine now in my Access apps.

However, when I try the same thing in my VB apps, I get the
Compile error: Constants,fixed-lengths strings, arrays, user-defined types
and Declare statements not allowed as Public members of object modules.

I created a new class module and put the Declare FindWindow after Option
Explicit as I have done in Access.

Any suggestions
george

> Take a look at http://www.mvps.org/access/api/api0013.htm at "The Access
> Web" for how to determine the class name of all running applications. Use
[quoted text clipped - 17 lines]
> > Many thanks
> > george

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Douglas J. Steele - 27 Feb 2005 21:18 GMT

Odd. I don't see anything public in that code (other than the fEnumWindows
function).

Do you have to use a class module, or can you use a regular module instead?

Otherwise, you're probably better off asking in one of the VB groups. (I
don't have VB installed on this machine, so I can't test anything for you)

Signature

Doug Steele, Microsoft Access MVP
http://I.Am/DougSteele
(no e-mails, please!)

> Thank you Doug
>
[quoted text clipped - 33 lines]
>> > Many thanks
>> > george

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GeorgeMar - 28 Feb 2005 02:01 GMT

Thank you Doug

I moved everything into a module and it works fine.

regards
george

> Odd. I don't see anything public in that code (other than the fEnumWindows
> function).
[quoted text clipped - 41 lines]
> >> > Many thanks
> >> > george

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