Camera preview for still images

[nitindon]

I am trying to use DirectShow API for interfacing with camera functions on the UNIVERSAL (windows mobile 5.0) device. I have got the the code (camera capture sample) that can take a picture (on button click) and save it to a file without showing a preview. This uses following DirectShow interfaces
IAMVideoControl, IPin, IFileSinkFilter, ICaptureGraphBuilder2, IBaseFilter, IImageSinkFilter, etc

Does anybody know a way of having a camera capture preview shown before taking a picture using DirectShow.

Any help will be appreciated
Thanks
Nitin