The following command sets the monitor window position at 100, 100.

put digitalvideo window at 100 100 260 220 move monitor wait

The following command sets the video capture region to be a 640x288 rectangle at offset 0, 100 (from the lower left) out of the total video capture extents.

put digitalvideo record source at 0 100 640 388 move wait

The following command sets the output video size to 320x144.

put digitalvideo record destination at 0 0 320 144 wait