INT 62 u - FGDRIVER v4.02 - "FG_GETVIEW" - GET VIEWPORT EXTREME LIMITS
	AX = 004Fh
	ES:BX -> variable pointer record (see #03487)
Return: indicated variables updated
Note:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474 at AX=0000h)
SeeAlso: AX=00B5h


Format of FGDRIVER GETVIEW variable pointer record:
Offset	Size	Description	(Table 03487)
 00h	WORD	segment of WORD buffer for viewport left edge (viewport units)
 02h	WORD	offset of WORD buffer for viewport left edge (viewport units)
 04h	WORD	segment of WORD buffer for viewport right edge (viewport units)
 06h	WORD	offset of WORD buffer for viewport right edge (viewport units)
 08h	WORD	segment of WORD buffer for viewport top edge (viewport units)
 0Ah	WORD	offset of WORD buffer for viewport top edge (viewport units)
 0Ch	WORD	segment of WORD buffer for viewport bottom edge (viewp. units)
 0Eh	WORD	offset of WORD buffer for viewport bottom edge (viewp. units)
 10h	WORD	segment of WORD buffer for viewport left edge (screen space)
 12h	WORD	offset of WORD buffer for viewport left edge (screen space)
 14h	WORD	segment of WORD buffer for viewport right edge (screen space)
 16h	WORD	offset of WORD buffer for viewport right edge (screen space)
 18h	WORD	segment of WORD buffer for viewport top edge (screen space)
 1Ah	WORD	offset of WORD buffer for viewport top edge (screen space)
 1Ch	WORD	segment of WORD buffer for viewport bottom edge (screen space)
 1Eh	WORD	offset of WORD buffer for viewport bottom edge (screen space)