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How to check if a serial port is already connected or not

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Sreedu
Sreedu 2011-2-11
回答： Behrad kiani 2013-11-9
Hello,
Is there some function which indicates if a serial port is already connected and open? I do not want to know this by the error thrown when trying to open it again. Is there any other way?

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Behrad kiani
Behrad kiani 2013-11-9
check imaqhwinfo function in help. continue with using matrox.it will shows you the devices which connected and known for your pc

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