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MQL5 ReferenceStandard LibraryGraphic ObjectsCChartObjectNumPoints 

NumPoints

Gets the number of anchor points of a graphical object.

int  NumPoints() const

Return Value

Number of points linking a graphical object attached to an instance of the class. If there is no attached object, it returns 0.

Example:

//--- example for CChartObject::NumPoints 
#include <ChartObjects\ChartObject.mqh> 
//--- 
void OnStart() 
  { 
   CChartObject object; 
   //--- get points count of chart object  
   int points=object.NumPoints(); 
  }