Snapshot doesn't work even though snapshot capabilities are reported

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Attach an external USB webcam to an iMac with existing webcam (couldn't get 
the external webcam model).
2. Check for snapshot capabilities by checking if the SnapshotCapabilities 
array has Length > 0 (it returns a length 10 array, so I assume it supports it).
3. Start the camera and call SimulateTrigger (I do these steps right next to 
each other, runs fine with the iMac camera)

What is the expected output? What do you see instead?
I expect to get a picture, but nothing happens, my breakpoint in the snapshot 
event handler never trips.

What version of the product are you using?
2.2.5

Please provide any additional information below.
Tried setting the other Snapshot related properties and starting the camera 
well before calling SimulateTrigger to no avail.

Original issue reported on code.google.com by bradley....@gmail.com on 4 Nov 2013 at 11:00

[GoogleCodeExporter]

Tried this on a machine with no other cameras and it still doesn't work with 
snapshot.

Original comment by bradley....@gmail.com on 4 Nov 2013 at 11:12

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[GoogleCodeExporter]

Original comment by andrew.k...@gmail.com on 5 Nov 2013 at 1:47

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