Hello Peter

Replying to a message of Peter Fitzsimmons to Alan Clifford:

 AC>> I want to automatically detect if the clock has changed.  Under Dos I
 AC>> am  thinking about a TSR that hooks the interrupt that  updates the
 AC>> RTC.  I suspect that if I ran this in an  OS/2 Dos session, the
 AC>> operating system would just fall  about laughing!  So I need an OS/2
 AC>> text mode program  that detects the clock has been changed and I
 AC>> don't  have a clue where to start.

 PF> Installing a hook in a TSR (or someting similar under OS/2) strikes me
 PF> as a big waste of CPU cycles -- all day long -- why don't you just
 PF> set the clock each time you get mail,  whether you need to or not?

I was looking for something passive.  I was under the impression that the
interrupt under Dos (1Ah, 03h) just sits there until something calls it.

But I tend to agree with your sentiments.  The idea came about because at a
Psion meeting, someone asked if anyone had managed to set the Psion clock
from the PC and my son said that I had.  I had a conversation with the
bloke via email and he suggested the desirability of setting the Psion
clock when the PC clock changed after a mail session.  So I got to thinking
about a scenario where you plug your connecting lead into the Psion, it
interogates the PC program to see if the PC clock has been recently
corrected and then updates its own clock from the PC.

Personally, I just, occasionally, set my watch from the radio time signal
and set my PC from that.

Alan

--- FleetStreet 1.14 NR