How to connect to a usb cam through acrobat api??

I have deveopled a plugin for acrobat...and want to initiate a usb cam through my plugin...is there any method available in the api to detect or connect to a usb cam????If yes please explain how to do so...

...is there any method available in the api to detect or connect to a usb cam????
No. You may look at the apis of your operating system.

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Attachments:
NI Vision Acquisition Express Error for NI cRIO 9022.JPG ‏39 KB
IMAQ and dx Modules Installed on my NI cRIO 9022 hardware(No NI Vision Acquisition 2010 SP1).JPG ‏82 KB
NI Vision Acquisition Express NO Error for NI cRIO 9022.JPG ‏48 KB

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How to connect to a usb cam through acrobat api??

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