Format of Optima 1024 window parameters:
Offset	Size	Description	)
 00h	WORD	X start of zoom window
 02h	WORD	Y start of zoom window
 04h	WORD	X end of zoom window
 06h	WORD	Y end of zoom window
 08h	WORD	current zoom factor
 0Ah	WORD	zoom offset start X
 0Ch	WORD	zoom offset start Y