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I have a built in webcam (HP) and an USB webcam. Whenever I use webcams in OpenCV, the built in webcam is used. However I want use the USB webcam. I tried disabling the built in webcam and even uninstalling the drivers, but after doing that, I get a message saying that no webcams were detected, even though the USB webcam is connected. How can I use the USB webcam instead of the built in webcam? I have searched the net top to bottom and have found no fix.
Thanks
The command
CaptureFromCAMaccepts an integer as its only argument which specifies the device number to use. Change this number and it will use a different device.