Passing MSComm Control to a DLL

I am trying to pass a control of type MSComm to a dll. I have declared it as of type MSCommlib.MSComm. The initialization etc. for the comm port is done in the DLL. Now I want to use the OnComm event. Should I place it inside the DLL or in the form code where the MSComm control is placed. In either case the oncomm event is not getting fired even though the characters arrive in the receive buffer. I have set the RThreshold property to 1
riturajkhareAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

EDDYKTCommented:
try

private withevents mycomm as mscommlib.mscomm

set mycomm = 'your pass in comm object'


you should have event called mycomm_onevent
0
kfrickCommented:
The OnComm event must be in the DLL.......
the DLL should recieve a message, then raise a "GotData(szData)" Event.
The form code then uses the "dllMyCommDll_GotData(szData)" event to accept the data from the DLL.................
Your DLL can perform message formatting and rejection, if required, before sending data to the calling form.....

Hope this helps!
-kf
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
GivenRandyCommented:
Please fill in 'your pass in comm object'.  When I tried this, I got an error message (object not existing).
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Visual Basic Classic

From novice to tech pro — start learning today.