RECORD SOURCE AT rect

Specifies the origin and size of a window describing video to be captured relative to the maximum available capture window. The rectangle coordinates for source capture are relative to the lower-left corner of the video source.

If the device is cued for input (recording), the actual source rectangle is displayed. Otherwise, the maximum source rectangle is displayed with any subset represented as an animated, dashed-line rectangle.

Note: If only the source is set then the destination defaults to half of the source size. The video source extent can be found using the STATUS command with the HORIZONTAL VIDEO EXTENT and VERTICAL VIDEO EXTENT keywords.

If the device cannot distort and the rectangle specified with PUT object RECORD SOURCE AT rect is not an integral multiple of the rectangle specified with PUT object RECORD DESTINATION AT rect (playback video size), the source and destination rectangles will be adjusted to find the nearest values that will make the source become an integral multiple of the destination and the destination become a multiple of eight.