how to expose hidden arrow objects from custom indicator in chart's objects list - page 2

[Vladimir Karputov]

Jackery :

Okay. Please how do I access the arrow objects in an EA?

Use CopyBuffer - just indicate the indicator buffer number (the indication of buffers starts from '0').

[Jackery]

Vladimir Karputov:

Use CopyBuffer - just indicate the indicator buffer number (the indication of buffers starts from '0').

I did that, please see code below. But that gives me MA values. How will I use the CopyBuffer for objects?

double      MA[];             
int         MA_handle;   
 
 
 
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
 
 
  MA_handle=iCustom(NULL,PERIOD_M1,"MyTrendIndicator");
 
   return(0);
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
 
   CopyBuffer(MA_handle,0,0,3,MA);
 
   ArraySetAsSeries(MA,true);  
 
 
Print( "h MA[1]: "+MA[1]);
 
 
   }

[Vladimir Karputov]

Jackery :

I did that, please see code below. But that gives me MA values. How will I use the CopyBuffer for objects?

There are no objects when using the 'DRAW_ARROW' style. There is only an indicator buffer.

Work with the indicator buffer - using 'CopyBuffer' receive data from the indicator buffer and check the received value.

Also I recommend: first write a simple indicator based on the 'DRAW_ARROW' style. Then the advisor.

[Jackery]

Vladimir Karputov:

There are no objects when using the 'DRAW_ARROW' style. There is only an indicator buffer.

Work with the indicator buffer - using 'CopyBuffer' receive data from the indicator buffer and check the received value.

Also I recommend: first write a simple indicator based on the 'DRAW_ARROW' style. Then the advisor.

I updated  my code to check the CopyBuffer() value, but the value always equal to the CopyBuffer() count parameter. For example in the updated code below, the count is 123 and the CopyBuffer() value is also 123 regardless of the timeframe.

double      MA[];             
int         MA_handle;   



//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {

  
  MA_handle=iCustom(NULL,PERIOD_M15,"MyTrendIndicator");

   return(0);
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {

   ArraySetAsSeries(MA,true); 
   int cBufValue = CopyBuffer(MA_handle,0,0,123,MA);

    Print( "buffer value for M15 is: "+cBufValue);
   


   }

[Vladimir Karputov]

Jackery :

I updated  my code to check the CopyBuffer() value, but the value always equal to the CopyBuffer() count parameter. For example in the updated code below, the count is 123 and the CopyBuffer() value is also 123 regardless of the timeframe.

Please read the help carefully:  CopyBuffer

Return Value

Returns the copied data count or -1 in case of an error.

CopyBuffer copies data INTO ARRAY. Now you need to print any value from the array (for example, the value MA [0])