Acquiring data using the preview function for gigecam object

I have problems acquiring data from a GigE Vision Device. The Device delivers 16Bit Pixel Data.

I create a gigecam object, then I call the preview(obj) function. When I try to access the CData of preview, i can only get 8-Bit Data because " larger bit data is scaled to 8-bit for the purpose of displaying previewed data. If you need the full resolution of the data, use the getsnapshot or getdata functions."

The getsnapshot function is not sufficient as the FrameRate depends on the performance of MATLAB on my Windows.

The getdata function is not supported by a gigecam object.

How can I access the data using a gigecam object? How can I use properties like TriggerType, Logging etc. with a gigecam object?

Thanks for answers!

[Stefan]

If I use a videoinput object, I can access the data but I cant access the registers of the GigE Device. So any idea how to deal with these problems are highly welcome!