Format of HCBBW parameter block:
Offset	Size	Description	)
 00h	WORD	0006h or 000Eh (length of following data)
 02h	WORD	data format
		0000h across-the-plane copy (color expansion)
		0008h through-the-plane copy
 04h	WORD	data rectangle's width
 06h	WORD	data rectangle's height
---optional---
 08h	WORD	sub-rectangle left margin in pixels
 0Ah	WORD	sub-rectangle top margin in pixels
 0Ch	WORD	sub-rectangle width
 0Eh	WORD	sub-rectangle height
SeeAlso: #03891,#03892,#03893