Member Avatar for jp071

Hello,
Anybody can give me idea, How can i check COM port? I want to check, is it already open or not? if it is already open, just avoid to open the port.

Thanks.

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  • Latest Post Latest Post by Salem
Member Avatar for Ancient Dragon

Just try to open it -- if open files then its probably already opened (assuming COM1 exists and there are no hardware problems)

Member Avatar for jp071

My problem is not exactly that. I have another software that run semultaniously. The software also can open the COM1 port. If it opened, my program do not need to open COM1 port. Then Just i want to read data from the port.

Member Avatar for jencas

If the COM1 port is in use by an other process, this resource is locked by the OS and subsequent tries to open the COM1 port will fail.

Member Avatar for jp071

Thanks for your post. I could able to solve the problem.

Member Avatar for jencas

Then mark this thread as solved, please

Member Avatar for Salem

Better yet, tell US what you found out, how you solved it and then mark it closed.
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