CopyBuffer return -1

[samjesse]

Hi

I have 1M chart among 3 more charts on the screen, A customer indicator is attached on both charts.
The following does NOT produce INVALID_HANDLE
Why is the CopyBuffer returning -1 ?

if(handleStock==INVALID_HANDLE) Print ("invalid stochastic handle.");
int copied = CopyBuffer(handleStock,0,0,bars,stochBuffer);

When I run the code initially, it works fine and does not return -1, but when onCalculate works, it gives that error.

the Docs:
if requested timeseries are not yet built or they need to be downloaded from the server,
that can not apply here since the chart is on the screen. right?

many thx

 

[samjesse]

I feel I should include more of the code

/////////////// INDICATOR FILE
#include <file1.mqh>
#property indicator_buffers 8
// code...

////////////FILE1.mqh
#include <File2.mqh>
//code...
class ABC
{
private:
double stochBuffer[300];
int handleStock;
double low[300];
//code...
public:
int bars;
void func1(void);
}
// constructor
ABC(string name, ENUM_TIMEFRAMES _prd)
{
_symbol = name;
_period = _prd;
bars = ArraySize(low);
}
 
void ABC::func1(void)
{
if(handleStock==INVALID_HANDLE) Print ("invalid stochastic handle.");
int copied = CopyBuffer(handleStock,0,0,bars,stochBuffer);
}

 

[Enivid]

Did you try making stochBuffer dynamic?

 

[samjesse]

Did you try making stochBuffer dynamic?

Yes, No difference.

 

[Enivid]

Perhaps, handleStock is valid but contains no data for some reason? Like you are causing it to recount the indicator each tick somewhere or something like that.