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.
jp071
-6
Light Poster
Recommended Answers
Jump to PostJust try to open it -- if open files then its probably already opened (assuming COM1 exists and there are no hardware problems)
Jump to PostIf 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.
All 6 Replies
Ancient Dragon
5,243
Achieved Level 70
Team Colleague
Featured Poster
Just try to open it -- if open files then its probably already opened (assuming COM1 exists and there are no hardware problems)
jp071
-6
Light Poster
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.
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.
jp071
-6
Light Poster
Thanks for your post. I could able to solve the problem.
jencas
Then mark this thread as solved, please
Salem
5,138
Posting Sage
Better yet, tell US what you found out, how you solved it and then mark it closed.
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