Path: utzoo!mnetor!uunet!husc6!m2c!ulowell!hawk.ulowell.edu!hvo
From: hvo@hawk.ulowell.edu (Huy D. Vo)
Newsgroups: comp.os.vms
Subject: DCL prompt from a spawned process?
Message-ID: <5592@swan.ulowell.edu>
Date: 21 Mar 88 09:21:35 GMT
Sender: news@swan.ulowell.edu
Reply-To: hvo@hawk.ulowell.edu (Huy D. Vo)
Organization: University of Lowell, CS Dept.
Lines: 36


	Hi world,
	I have a program that spawns a process to execute DCL commands. I have  
	arranged to have this process (running DCL) read input from a mailbox
	and output to another mailbox. Then I use read qio's on the second mailbox
	and send whatever the qio's return to my screen and to a log file. What
	I am trying to get is the prompt. Where does it go? Reading from the second
	mailbox only shows DCL output. No prompt! I can fake a prompt (in  
	proc#1) but am still curious about the missing prompt. 
	I would appreciate any help on how to get the *real* DCL prompt.
	I hope the following figure clarify what I am trying to do.
	Please e-mail any answers, suggestions, ideas.

		-------------------------
		|proc#1                  |
		| reading from keyboard  |
		| output to mailbox      |
		-------------------------
				   V
				mbox # 1
				   V
		----------------------
		| proc#2 (running DCL)|
		| read mbox#1         |
		| process command     |
		| output to mbox#2    |
		---------------------
				   V
				mbox # 2
				   V
		----------------------
		| proc#3              |
		| read mbox#2         |
		| output to logfile   |
		| and screen          |
		----------------------