Category: DESQview/TopView and Quarterdeck programs

INT 15 - TopView - SEND MESSAGE - "ADDR" - GET HANDLE OF MESSAGE SENDER

	AH = 12h
	BH = 03h
	BL = object
	    00h mailbox handle in DWORD on top of stack
	    02h sender of last msg read from mailbox (task's handle on stack)
	    03h sender of last msg read from current task's mailbox
Return: DWORD on stack is task handle of message sender
SeeAlso: AH=12h/BH=00h,AH=12h/BH=83h