Is there a way to set an ActiveX reference to Nothing or test for "Nothing"-ness of an ActiveX reference?

[Bob Rafuse]

In TestStand 2.0, is there a way to set an ActiveX reference to "Nothing"
(to use the Visual Basic term)? In other words, is there a way to release
the ActiveX DLL or EXE object without waiting for the ActiveX reference to
go out of scope?

Also, is there way to test whether or not a particular ActiveX reference has
been initialized (i.e. is or is not "Nothing")?

TIA,

Bob.

[dug9000]

Yes, there is an expression constant Nothing in the TestStand expression language. Just assign it to the variable or use it in an equality comparison. You can use a statement step to do this.

Doug Melamed

[Bob Rafuse]

> Yes, there is an expression constant Nothing in the TestStand
> expression language. Just assign it to the variable or use it in an
> equality comparison. You can use a statement step to do this.

D'oh! I didn't look under Constants and I couldn't find anything in the
user manual index...

Thanks.

Bob.

[btuman]

Is there a way to do this from within a CVI DLL? I am setting a synchronization lock within TestStand, but I need to release the lock from within the DLL. I am storing the lock in TestStand as an ActiveX Reference.

Thanks,

Brian