Int 62 Fn 00D7  u - Fgdriver V4.02 - "fg_vbtccopy" - Copy Rectangle Betwe  [V]

   AX = 00D7h
   ES:BX -> variable record (see #3182)
   CX = source virtual buffer's handle
   DX = destination virtual buffer's handle
Desc:  copy rectangle from one virtual buffer to another with transparent
     colors

Notes: the FGDRIVER functions are rearranged with each major release, but
     their parameters do not change (see #3145)
   if the destination buffer is the same as the source buffer, the regions
     must not overlap

See Also: AX=00CFh,AX=00D0h,AX=00D6h,AX=00D8h

Format of FGDRIVER VBTCCOPY variable record:
Offset Size    Description (Table 3182)
 00h   WORD    source region's left edge
 02h   WORD    source region's right edge
 04h   WORD    source region's top edge
 06h   WORD    source region's bottom edge
 08h   WORD    X coordinate of destination region's upper left corner
 0Ah   WORD    Y coordinate of destination region's upper left corner