forcing the comm port close

[anonymous]

[Originally posted by andre]

Say I have an "external" program,one I have not written,ÿ that access comm port 2 and I have another program, which I wrote in visual basic, who also wants to access that port. How do I go about forcing the comm port close?

[anonymous]

[Originally posted by John Citizen]

From what i am aware, if another program has a comm port open you can not access it or close it.

I would say it is impossible without terminating the other program or rebooting. However i last time i said something couldnt be done i was proven wrong.

I do a lot of comm work and generally if a comm port is open by another program a simple message stating the comm port is in use is all you can do.

John Citizen
Neocom IT