AX = 0001h DX = game device handle BL = MIDI byte to send??? ???
EAX = status 00000000h if successful FFFFFFFFh on error (function disabled)
Program: IWSBSDRV is the resident portion of the InterWave SBOS sound card emulator for the Gravis UltraSound Plug-and-Play
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=0002h - INT 2F/AX=CD21h - #03074
Category: Sound/Speech - Int 7Eh - I