The powers that be have dropped a Grand Multi Capture Card on my desk. It has four ports that CCTV cameras my be plugged into. Using AVICAP I can capture from one camera at a time. By calling up the source dialog box, I can select which camera is captured from.

What I would like to do is programatically select which camera is captured from. As far as I've managed to figure out, AVICAP can't do this, however I've heard a rumour about something called "crosspoint matrix" in DirectX.

Has anyone heard of this, or know of how I can do this please? Thanks


Jeremy Davis
http://www.astad.org