Int 7E Fn 0002  - Iwsbsdrv V1.41 - Send Midi String                        [s]

   AX = 0002h
   DX = game device handle
   ES:EDI -> buffer containing MIDI string to be sent
   ECX = length of buffer in bytes

Return: EAX = status
       00000000h if successful
       FFFFFFFFh on error (function disabled)

Note:  this function is only supported if the MIDISIMPLE device has been
     opened via the InterWave Game API (see INT 2F/AX=CD21h)

See Also: AX=0001h,INT 2F/AX=CD21h,#2746