RBIL61 - INT 2F - Diamond Stealth64 Video - STLTH64.VXD - ??? {undocumented, callout or callback}

INT 2F UC - Diamond Stealth64 Video - STLTH64.VXD - ???                         
	AX = 4021h
	???
Return: ???
SeeAlso: AX=4022h,AX=4023h