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Title: Re[2]: [amibroker] Herman's custom buttons and refresh
RequestTimedRefresh(1) means you get at least one refresh per second. However if you get ten quotes in or you click on the screen you'll get many more. There is no way to limit refreshes to one per second.
herman
Sunday, August 24, 2008, 2:45:31 PM, you wrote:
> 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@xxxxxxxxxxxxxxx, "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@xxxxxxxxxxxxxxx
> [mailto:amibroker@xxxxxxxxxxxxxxx] 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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Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
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For other support material please check also:
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