copyRectangle
abstract fun copyRectangle(sourceTop: Int, sourceLeft: Int, sourceBottom: Int, sourceRight: Int, sourcePage: Int, destinationTop: Int, destinationLeft: Int, destinationPage: Int)
Copies a VT400 rectangular area (DECCRA).
Coordinates retain DEC's one-based inclusive representation so the core can apply active origin-mode policy. Page numbers use DEC's one-based numbering; 0 denotes omission.