again. my guess is that my original question is being
missed. my ab
has preferences set to realtime chart refresh =1 which means, it
tends to refresh the chart every second.
http://screencast.com/t/xuR9zxg9a
however the buttons afl has a builtin refresh RequestTimedRefresh(1).
so is my chart refreshing twice per second.
any inputs here.
--- In amibroker@xxxxxxxxxps.com,
"Tomasz Janeczko" <groups@xxx>
wrote:
>
> Re[2]: [amibroker] Herman's custom buttons and refreshThe one and
only correct way to force refresh of given formula from the very same
formula
> is to use RequestTimedRefresh(). It refreshes ONE and only formula.
>
> Using RefreshAll is huge overkill. It refreshes EVERYHING,
including all ticker lists, tree displays, dialogs, commentaries,
interpretations, etc.
>
> There won't be any "Scope" added to RefreshAll because it will
be,
like RefreshAll already is, abused. RefreshAll already
> has protection against brining the program down by implied infinite
loops generated by people calling it from indicators unconditionally.
> I can't stop people from shooting themselves in the foot, but I can
at least disourage using RefreshAll as much as I can.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: Herman
> To: Fred Tonetti
> Sent: Sunday, August 24, 2008 11:02 AM
> Subject: Re[2]: [amibroker] Herman's custom buttons and refresh
>
>
> Thanks... the trouble is that the Backtester will do other
unknown (to me) things.
>
>
>
>
> I don't see this very clearly ... buy sometimes I miss a way to
execute AFL in isolation, for example to process data without causing
any spin-off actions like chart refresh, interpretation window,
Backtest, Tooltip, be subject to length of data arrays, or whatever.
AFL has become a real programming language, not just something to
drive charts. Sometimes the dedication to driving charts is a
handicap.
>
>
>
>
> Wrt RefreshAll, what would be nice is a Refresh( Scope, Event );
where we can specify the scope of the Refresh to specific areas of
AmiBroker, like Interpretation, current formula, Indicator pane,
current window, ticker tree, all, ...
>
> And specify when we want the refresh done, for example disable
quote refreshes in Real-time Applications and use timed refresh only.
>
>
>
>
> Such features would give us better control and allow us to save
execution time in many cases. It would also reduce AFL dependence on
DLLs, COM stuff, etc.
>
>
>
>
> herman
>
>
>
>
>
>
>
> Sunday, August 24, 2008, 1:20:01 AM, you wrote:
>
>
>
>
> >
> I think Backtest will perform the same functions you want
out of RefreshAll and if Apply To is set to the current symbol in
most cases it will run faster than RefreshAll
>
>
>
> Try it .
>
>
>
>
> ----------------------------------------------------------
----
>
> From: amibroker@xxxxxxxxxps.com
[mailto:amibroker@xxxxxxxxxps.com]
On Behalf Of Herman
>
> Sent: Saturday, August 23, 2008 8:12 PM
>
> To: murthysuresh
>
> Subject: Re: [amibroker] Herman's custom buttons and refresh
>
>
>
> It is better not to use the RefreshAll() at all, it
is slow. However, if I remember correctly, there were some conditions
that required the entire formula (including button-code before the
clicked button) to be re-executed when a button was clicked. Else you
are looking at a button panel that is only half refreshed after the
button clicked. It could take, in your case another second, to
refresh all buttons. For example, this would show up if you had many
button columns and were collapsing the panel. The panel would
collapse in two steps. Looks weird but no big problem.
>
>
>
> I think Tomasz was going to look into a current-
formula refresh only, which would be very fast.
>
>
>
> Best thing is just to try it out, one second
refreshes may be OK for you.
>
>
>
> herman
>
>
>
> Saturday, August 23, 2008, 7:50:40 PM, you wrote:
>
>
>
> > Herman. your code for the custom buttons has a
builtin refresh command.
>
> > my ab is set to refresh at 1 sec interval using
prefreences. is there
>
> > any reason why i should be using the
RequestTimedRefresh(1);
>
>
>
> > does it mean my ab will refresh twice per second?
>
>
>
>
>
>
>
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