Int 62 Fn 0021  u - Fgdriver V3.03 - "fg_drect" - Draw Dithered Rectangle  [V]

   AX = 0021h
   BX = screen space column of left edge
   CX = screen space column of right edge
   DX = screen space row of top edge
   SI = screen space row of bottom edge
   ES:DI -> dithering matrix (video-mode dependent)

Notes: For FGDRIVER v1.10, this function was "FG_GETXPOS" (see AX=0045h);
     "FG_DRECT" was AX=002Ch
   This call is ignored in text modes

See Also: AX=0006h,AX=0008h,AX=0011h,AX=0031h,AX=0072h,AX=0080h