Questions from Beginners MQL5 MT5 MetaTrader 5 - page 1316

[Aleksei Stepanenko]

Through WinAPI you can, if it suits you.

there is a function in kernel32.dll

BOOL GetFileTime(
  HANDLE     hFile,
  LPFILETIME lpCreationTime,
  LPFILETIME lpLastAccessTime,
  LPFILETIME lpLastWriteTime
);

https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getfiletime

[Aleksei Stepanenko]

There's something here

https://www.mql5.com/ru/articles/1540

[Vitaly Muzichenko]

Aleksei Stepanenko:

There's something here

https://www.mql5.com/ru/articles/1540

Thank you!

There's no way to do it with the standard tools.

[Aleksei Stepanenko]

Looks like it, I don't know the local way. GetFileTime needs to pass the handle from the kernel as well.

[User_mt5]

Artyom Trishkin:
What's not good with ChartIndicatorAdd()?

This wonderful function requires indicator_handle

How to get this parameter for technical indicators I have found, namely:
Each technical indicator has its own function, e.g. for MACD:

indicator_handle=iMACD(symbol,period,fast_ema_period,slow_ema_period,signal_period,apr);

My question is about a custom indicator.
I couldn't find in the help how to getindicator_handle of my indicators, especially at the time when they are not yet in the window.

It's possible that I wasn't looking hard enough.
I would be extremely grateful for a link.

[Artyom Trishkin]

User_mt5:
This great function requires indicator_handle

How to get this parameter for technical indicators I have found, namely:
Each technical indicator has its own function, e.g. for MACD:

My question is about a custom indicator.
I couldn't find in the help how to getindicator_handle of my indicators, especially at the time when they are not yet in the window.

It's possible that I wasn't looking hard enough.
I would be extremely grateful for a link.

iCustom()

[User_mt5]

Artyom Trishkin:
iCustom()

Thank you very much! You've really helped me out!

And of course, where else should this function be but in the middle of the list of technical indicators...)

[Vladimir Karputov]

serg_V777:
Greetings.
I have a problem with horizontal lines in MQL5.
A manually created horizontal line in the GAZP chart is also displayed in the SBER chart since their prices are similar. Please advise how to save the line and display it where it was created.
***
neither in the first nor in the second variant does not want to work...

Pleaseinsert the codecorrectly: when editing a message, click on and paste your code in the popup window.

[serg_V777]

I have a problem withhorizontal lines in MQL5.
A manually created horizontal line in the GAZP chart is also displayed in the SBER chart since their prices are similar. Please advise how to save the line and display it in the place it was created.
does not want to work with the first or the second option...

preff=ChartSymbol( NULL);
price=SymbolInfoDouble(Symbol(),SYMBOL_BIDLOW);
ObjectCreate(0,preff+"hhh",OBJ_HLINE,0,0,price) ;
/////////////////////////////////////////////////////////////
if(preff+"hhh" != ChartSymbol(0) ){
ObjectSetInteger(0,preff+"hhh",OBJPROP_COLOR,clrNONE); }
///////////////////////////////////////////////////////////
if(preff != ChartSymbol(NULL) ) {
ObjectSetInteger(0,preff+"hhh",OBJPROP_COLOR,clrNONE); }

[Vladimir Karputov]

serg_V777:

I have a problem withhorizontal lines in MQL5.
A manually created horizontal line in the GAZP chart is also displayed in the SBER chart since their prices are similar. Please advise how to save the line and display it in the place it was created.
neither the first nor the second version does not want to work...

See the errors:

1. Always explicitly specify a graph symbol (yes, you can rely on documentation, but it's better to ALWAYS specify explicitly)

   preff=ChartSymbol(Symbol());
   price=SymbolInfoDouble(Symbol(),SYMBOL_BIDLOW);
   ObjectCreate(0,preff+"hhh",OBJ_HLINE,0,0,price) ;
//---
   if(preff+"hhh" != ChartSymbol(Symbol()))
     {
      ObjectSetInteger(0,preff+"hhh",OBJPROP_COLOR,clrNONE);
     }
//---
   if(preff != ChartSymbol(Symbol()))
     {
      ObjectSetInteger(0,preff+"hhh",OBJPROP_COLOR,clrNONE);
     }

2. String makes no sense - as preff+"hhh" will never equal Symbol()

Added: better to have this approach - always one line on the chart, just change the line price when you switch charts.