Capturing the change event of an drawing object

[Powerbucker]

Hi,

is possible from an indicator capture the change event of an drawing object? I need to find out when user moves an horizontal line.
Does exist this event? And can I capture it?

Thanks

[NinjaTrader_Jesse]

Hello Powerbucker,

There is currently no exposed changed event for drawing objects, you would have to poll for changes meaning monitor the object and check for value changes if you are using the drawing objects collection to find objects on the chart.

[Powerbucker]

Any suggestions how to do it? With a timer? I am now monitoring with the OnBarUpdate event, but when the market is slow, this event is triggered less often.

[NinjaTrader_Jesse]

Hello Powerbucker,

You can find an example of using a timer in the following page, I would likely still suggest using the market data for that purpose since the other logic you may be using that uses the objects or prices would not be triggered without market data anyway. OnBarUpdate is the suggested location for any kind of logic that involves the chart or its data.

https://ninjatrader.com/support/helpGuides/nt8/triggercustomevent.htm