SymbolSelect(SYM,false) - isn't it working - or do I do something wrong? - page 2

[Whybell]

Sorry, this is the right code:

dgts=MarketInfo(SYM,MODE_DIGITS);
if (GetLastError()>0){
   //SYM is not on Market Watch
   SymbolSelect(SYM,true);
   dgts==MarketInfo(SYM,MODE_DIGITS);
   SymbolSelect(SYM,false);
   }

 

[William Roeder]

This has the same problem as previously mentioned, i.e. not testing for 4066/4073 and waiting for the download to complete.

[Aecio de Feo Flora Neto]

Guys, hello.

I am trying to grab prices, using iClose() basically, from other symbols only under D1, but no data is loaded.

I just tried using the example from Carl (https://www.mql5.com/en/forum/159114#comment_3813774) but it continues running non-stop without data.

Debugging another code I am working on, I could see that it raises error 4073 (NO HISTORY DATA)

Considering this, I wonder what is the point that iClose() allows Symbol and Timeframe as parameters if it does not load data?

[William Roeder]

Aecio de Feo Flora Neto: I am trying to grab prices, using iClose() basically, from other symbols only under D1, but no data is loaded.	Why didn't you read the comment directly above? #12 This has the same problem as previously mentioned, i.e. not testing for 4066/4073 and waiting for the download to complete. See Download history in MQL4 EA - MQL4 and MetaTrader 4 - MQL4 programming forum

[Aecio de Feo Flora Neto]

whroeder1:

	Why didn't you read the comment directly above? #12 See Download history in MQL4 EA - MQL4 and MetaTrader 4 - MQL4 programming forum

Does it work also when market is closed?

[Marco vd Heijden]

Aecio de Feo Flora Neto:
Does it work also when market is closed?

Maybe quite easy to try.

[Carl Schreiber]

Aecio de Feo Flora Neto:
Does it work also when market is closed?

The symbol has to present in the MarketWatch - use SymbolSelect() for that.

If it is an indicator Sleep doesn't work, so you only can leave OnCalculate() and either wait for the next tick or restart the indicator..

[Aecio de Feo Flora Neto]

According to tests I did, here goes my findings:

1. Market has to be opened in order to load history. This is very bad, IMHO.

2. Symbol has to be loaded in a chart at least once in target timeframe.

I am only building code in script due to nature of how indicator works.

I really don't understand why this has to be this way, it raises many limitations in the platform this way.

[Marco vd Heijden]

No its not you can press F2 and download any available symbol in history center even when markets closed.

[Aecio de Feo Flora Neto]

Marco vd Heijden:

No its not you can press F2 and download any available symbol in history center even when markets closed.

Not from broker, but from metaquotes. Not sure it is a good idea.