#MetaScan & Retina
09-May-94 00:30:06
Sb: #MetaScan & Retina
Fm: Charles Hill 76370,3045
To: Black Belt Systems 76004,1771
Ben,
A progress report on MetaScan, IM, the Retina and my system.
1) I got MetaScan to work. First it refused to run when I activated the
loader from IM R/t (by pressing the F4) key. After numerous failures
I decided to "jump start" the module by opening two CLIs and running
the CMPI:MetaScanIM and RXPI:MetaScanIM.rexx programs by hand.
This worked but my system crashed (guru 8000 000B).
2) *However*, the !@#@ thing now loads fine from inside IM. I _did not_
move or change anything, it just decided to start working. (On my
desk I have proof of computer-based sentience, and it *loves* to
irritate me!) It has started fine from IM R/t every time now (about
50 or 60 so far).
3) BUT (you knew this was coming, didn't you). It gurus every once in
a while. I narrowed this down to the fact that whenever I have the
RetinaView.rexx script run by IM as a 2nd Display, the system crashes
after allocating the scan buffer (when I press the "SCAN" button) and
updating the display. (Same guru as above.)
4) To make matters worse, I tried to modify the RetinaView.rexx program.
If you change the 2nd to last line to specify an address instead of
swapping (i.e. from "address;" to "address 'IM_Port';") then it will
scan and display. BUT, *then* it crashes. In other words, changing
the ARexx address decides when the machine crashes (before the scan
or after). Note that all *other* loads (non-scans) work fine with
the command set either way.
I'd like to request that you consider adding n a future update an ARexx command
for determining/changing the 2nd Display. Something like:
SECONDDISP ON|OFF <script>
SECONDDISP returns status & script name (if any) SECONDDISP ON
toggles the 2nd display button on SECONDDISP OFF toggles the 2nd
display button off SECONDDISP <script> specifies a script to be used
SECONDDISP ON <script> specifies a script and toggles the button on SECONDDISP
OFF <script> specifies a script and toggle the button off
Let me know if you have problems pinpointing the problem with MetaScan &
RetinaView. For all I know it could be my system (I think it enjoies doing
this to me. 🙂
-Chas