Java and Comm Ports

[trevors77]

I need to send commands to hardware devices through a PC's comm ports. Is Java capable of calling a comm contol similar to VB (MS Comm Control)? Does anyone happen to know what class/method this would be?

Thanks.

 

[jfryer]

Sun has released a comm port api (called commapi.jar I believe).

It will do what you require. It is similar to how Java writes everything else, whether it be to a file or screen to socket.

goto java.sun.com to find it. -------------------------------------------
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[garyweik]

What kind of hardward devices are wanting to send signals to?

Gary

 

[trevors77]

I'm sending commands to fixed Symbol scanners, label printers.

I also need to communicate with a PCI Dio card, but I think this must be something the product makes available.

 

[dannywild82]

you can use the port jar thing as sttailed above. if you want to communicate directly with an IO device, you need to use C or C++. the vendor will make a driver available you can use.
if you MUST use java you might be able to write a wrapper to use with native code.