From:	CSBVAX::MRGATE!RELAY-INFO-VAX@CRVAX.SRI.COM@SMTP 20-SEP-1988 19:14
To:	ARISIA::EVERHART
Subj:	Another SNAP fix - suspend and resume now work


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Date: 16 Sep 88 12:50:00 EDT
From: "DRCV01::GRAHAM" <graham%drcv01.decnet@drcvax.arpa>
Subject: Another SNAP fix - suspend and resume now work
To: "info-vax" <info-vax@kl.sri.com>

Hello SNAP users,

A few reports clued me into this bug:  The suspend and resume p/rocess 
functions of Modify do not work.  Well, it was the combination of a mystery 
and a stupid mistake.  It seems that FORTRAN does funny things with ELSE IF 
statements, I am confused here, but if you take the two statements:

            ELSE IF (OPTION .EQ. 2) THEN
            ELSE IF (OPTION .EQ. 3) THEN

and remove the ELSEs, (and put ENDIFs where needed to make it proper 
syntax), the IFs take effect, otherwise, the ELSE IFs are not executed, even 
if the conditions are met...weird!

Now, add these two statements:
                STATUS = SMG$READ_KEYSTROKE (KB_ID,DUMMY)
                STATUS = SMG$DELETE_VIRTUAL_DISPLAY (VD3_ID)
to the end of the 
      IF (OPTION .EQ. 3) THEN
structure, just before the ENDIF.

These should make the program work as advertised...until some good soul 
finds another bug, thatis.

If anyone can enlighten me on the strange behavior of the ifs and the else 
ifs, I'd appreciate it.

Dan Graham