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Programming Talk / C++ / C# - How do I create a virtual com port?

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Hawkblood
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Posted: 10th Jan 2011 21:31
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Does anyone know? I have found several applications (that costs money), but no source or example code....

The fastest code is the code never written.
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IanM
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Posted: 11th Jan 2011 18:31 Edited at: 11th Jan 2011 18:32
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I'm fairly sure that you'd need to write a device driver for this - writing a device driver isn't for the faint of heart. That's probably why you have to pay for it.

Get the latest Matrix1Utility plug-ins (23-DEC-2010)
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Hawkblood
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Posted: 11th Jan 2011 23:50
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Thanks for the reply. I hope you are wrong and someone knows.....

The fastest code is the code never written.
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D Ogre
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Posted: 24th Feb 2011 02:25
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I just caught this... I don't know if your still searching for info on this or not.

Drivers run in Kernel mode. They have a low level ring 0 access to the hardware (via the Kernel/HAL). With Windows Vista and Windows 7, you must have the driver signed by a qualified source in order for it to function properly (i.e. GlobalSign or VeriSign.) This is not cheap for an indy developer, enthusiast, or hobbyist. There is a yearly fee in the signing.

Try the Null-modem emulator (com0com) found at: http://com0com.sourceforge.net/

Follow the directions carefully for usage in Windows Vista and Windows 7. The UAC needs to be turned off and you will also need to enable driver test-signing.
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Hawkblood
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Posted: 25th Feb 2011 17:34
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Thanks for the info. I am currently using a driver by Eltima which does exactly what I want. I would have prefered to do it "at no cost", but we have already ordered the software license. The application is to be used in a military function, so I couldn't "skirt" around a license unless I could build it myself.

Once again, thanks.

The fastest code is the code never written.
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