Send a status request to the terminal
Esc"^" escape -circumflex
Read back from terminal
A status string will come back
Take the 6th char from this string, and if bit 7 (of 8) is on, block is on
If ECHO is ON, the string will be seen on the screen IIRC
Below is Basci/V code that does this.
8152 PRINT '27"X"'27"&a1r0C"'27"&k1B"'27"&a-2C"'27"J" Reset, turn on block
8154 CALL NOECH turn echo off
8156 PRINT '27"^"; status request
8158 ENTER 1,V,Z$ read
8160 Z=INT(NUM(Z$[6,6])/2) get byte 6 as a number, shift 1 to right
8162 IF INT(Z/2)<>Z/2 THEN 8167 test last bit foron
8164 PRINT '27"&a12r24C";"...Please Press Block Mode..."
8166 GOTO 8156
8167 SYSTEM X,"SETMSG OFF"
Regards,
John Pitman
IT Manager
RYCO Hydraulics Pty. Ltd.
19 Whitehall Street
Footscray, VIC 3011
Australia
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-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf Of Michael Caplin
Sent: Thursday, 27 May 2010 1:20 AM
To: [log in to unmask]
Subject: [HP3000-L] BLOCK MODE VARIABLE
I have a subprogram that can be called from a block or character mode main
program and I want the sub to know which called it without anything being
passed in linkage. I can think of some ugly ways to do it. Does anyone know
of an easy/simple way.
TIA,
mike
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