Format of VDI parameter block:
Offset	Size	Description	)
 00h	DWORD	-> control array (see #04067)
 08h	DWORD	-> integer parameters
 0Ch	DWORD	-> (x,y) pair parameters
 10h	DWORD	-> integer results
 14h	DWORD	-> (x,y) pair results
SeeAlso: #04064