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Re: OSD SCHEMA
- Subject: Re: OSD SCHEMA
- From: Frank Mc Alinden
- Date: Fri, 06 Jun 2003 23:29:00 +0000
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0
Transitional//EN">
<DIV><FONT face="Arial" size="2">Yep Just
had a think about it and it does make more sense to use the write / clear
command.....Not sure yet if i can implement the TRIG..checking in
homevision..will give it a try....</FONT></DIV>
<DIV><FONT face="Arial"
size="2"></FONT> </DIV>
<DIV><FONT face="Arial"
size="2">Frank</FONT></DIV>
<BLOCKQUOTE>
<DIV>----- Original Message ----- </DIV>
<DIV><B>From:</B> <A title="ian@xxxxxxx"
href="mailto:ian@xxxxxxx";>Ian
Lowe</A> </DIV>
<DIV><B>To:</B> <A title="ukha_xpl@xxxxxxx"
href="mailto:ukha_xpl@xxxxxxx";>ukha_xpl@xxxxxxx</A>
</DIV>
<DIV><B>Sent:</B> Saturday, June 07, 2003 8:13
AM</DIV>
<DIV><B>Subject:</B> Re: [ukha_xpl] OSD
SCHEMA</DIV>
<DIV></DIV>
<DIV><FONT face="Arial" size="2">Remember,
the schema is intended for as broad a set of devices and apps as
possible.</FONT></DIV>
<DIV><FONT face="Arial"
size="2"></FONT> </DIV>
<DIV><FONT face="Arial"
size="2">A clear command lets us force a blank
screen, rather than having a Text="" message, which isn't really
in keeping with the schema structure.</FONT></DIV>
<DIV><FONT face="Arial"
size="2"></FONT> </DIV>
<DIV><FONT face="Arial" size="2">Some
devices (most in fact) won't allow a message to be displayed indefinitely,
so using DELAY=0 in that way would have unpredictable results. This way, a
device that *can* show a message indefinitely will do so when it gets a
"delay=0", and send a trigger back with "command=write"
whereas, a device that cannot do so, will send back a trigger message with
"delay=60" (or whatever the *actual* delay was) and
"command=clear".</FONT></DIV>
<DIV><FONT face="Arial"
size="2"></FONT> </DIV>
<DIV><FONT face="Arial" size="2">This will
allow the controller to know that a message was only actually displayed for
the time shown.</FONT></DIV>
<DIV><FONT face="Arial"
size="2"></FONT> </DIV>
<DIV><FONT face="Arial"
size="2">Ian.</FONT></DIV>
<DIV><FONT face="Arial"
size="2"></FONT> </DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE>
<DIV><B>From:</B> <A
title="fmcalind@xxxxxxx" href="mailto:fmcalind@xxxxxxx";>Frank
Mc Alinden</A> </DIV>
<DIV><B>To:</B> <A title="ukha_xpl@xxxxxxx"
href="mailto:ukha_xpl@xxxxxxx";>ukha_xpl@xxxxxxx</A>
</DIV>
<DIV><B>Sent:</B> Friday, June 06, 2003 10:51
PM</DIV>
<DIV><B>Subject:</B> Re: [ukha_xpl] OSD
SCHEMA</DIV>
<DIV><FONT face="Arial"
size="2"></FONT><FONT face="Arial"
size="2"></FONT></DIV>
<DIV><FONT face="Arial" size="2">Thanks
Ian</FONT></DIV>
<DIV><FONT face="Arial"
size="2">
Just had a quick read and was wondering why
we need a CLEAR / WRITE command...my thoughts were if you sent a text
message with a delay of 00 then no clearing of the screen would take place
until it received a message with a delay value other than 00... BTW the
site looks good...</FONT></DIV>
<DIV><FONT face="Arial"
size="2"></FONT> </DIV>
<DIV><FONT face="Arial"
size="2">Frank</FONT></DIV></BLOCKQUOTE><TT>xPL
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/BLOCKQUOTE>
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