I am using c# to integrate with a web cam. I need to generate a snapshot image every x milliseconds and save it to file. I already have the code up and running to save to file on a button click event, however I wonder what am I supposed to do when taking snapshots in the background - Should this be multi threaded? I'm honestly not sure. I could just block the UI thread, put Thread.Sleep and then just take the snapshot, but I don't know if this is right. I thought of using a background worker, but I am now experiencing cross threaded difficulties with SendMessage... So I wonder if I should even go and bother to multi-thread or just block the UI.
There will be a physical hardware limit to how fast the camera can update its pixel buffer. Webcams don't go far above 30fps. Getting the actual image should be more or less instantaneous (unless at very high res), so you would not require threading to start off with. When I did it a while ago I used the approach as given on