MAX is unable to detect webcams

[caleyjag]

I have three different webcams. Two of them used to work in MAX and LabVIEW. When I tried to install the third one, everything stopped working.

I believe the problem was possibly a corrupted database - I was getting the following error:

http://digital.ni.com/public.nsf/allkb/7FF79722720AEE488625759B0074A2CA?OpenDocument

I followed the steps listed on that page, which did not solve the problem.

I then re-installed MAX and LabVIEW, and this has not solved the problem either. Neither MAX no LabVIEW can 'see' any of the three webcams.

All three are standard webcams and should be detectable by LabVIEW. I'm using LabVIEW 8.6 with Vision Acquisition 8.6 and IMAQdx.

The webcams are all standard:

- HP Webcam (built into laptop, not sure bus type)

- Logitech Quickcam

- Microsoft Lifecam

All three cameras are working on this computer - they work fine with their native viewers. The first two were working in LabVIEW fine before.

Is there a way I can *force* MAX to recognize these devices?

[BlueCheese · Accepted solution]

Vision Acquisition 8.6 did not support DirectShow/USB cameras. That was added in 2009. I am guessing you had an newer version previously installed? I'd suggest going and grabbing the latest version here:

http://joule.ni.com/nidu/cds/view/p/id/1641/lang/en

Eric 

[caleyjag]

Thanks, that was exactly the problem.

I forgot that I had upgraded to Vision Acquisition 2009 before.

Phew!