Function 6Ah    Direct Graphics Interface Standard (DGIS) 

entry   AH      6Ah 

	AL      00h     Inquire Available Devices 

			BX      0 

			CX      0 

			DX      buffer length (may be 0) 

			ES:DI   address of buffer 

		return  BX      number of bytes stored in buffer 

			CX      bytes req'd for all descriptions (0 if no DGIS) 

		note    Buffer contains descriptions and addresses of DGIS- 

			compatible display(s) and printer(s) 

		01h     Redirect Character Output 

			CX      0 

			ES:DI   address of device to send INT 10 output to 

		return  CX      0    output could not be redirected 

			    else INT 10h output now routed to requested display 

		02h     Inquire int 10 Output Device 

			ES:DI   0:0 

		return  ES:DI   0:0  if current display is non-DGIS 

			        else address of the current DGIS INT 10 display