Hello,
you can try to build a DirectShow filtergraph for your device first.
For this you can use the graphedit tool from the DirectX SDK or for example the opensource tool GraphStudio
http://blog.monogram.sk/janos/tools/mon ... aphstudio/
For both tools:
1. Try to insert a filter which uses your device.
In general a video device is listed in the filter category "Video Capture Sources". Select this category, select your device and insert it.
2. From the category "DirectShow Filters" insert a video renderer.
3. Then you have both filters inserted. You can connect (by mouse) the output pin of the video device "capture/or preview" with the input pin of the video renderer. If the connection is done you can run the filtergraph!
If this works you have build a valid DirectShow filtergraph.
In your case I guess you will have problems with 1. because your video device driver is not a normal "Video Capture Source" filter.
Try to find the driver of your device in another category and if found insert it.
Additonal perhaps the manufacturer of your card has separate DirectShow filters for downloading!!