Can Addon Distinguish Between Two Charts

[PhineasPhred]

If I open two identical charts is there a way for an addon to know which chart is which? Do charts have an ID or some unique identifying parameter that can be queried by an addon to know which chart its working on?

If not, is there a tag or some user parameter that we can set with an addon to ID the chart when it first opens?

I don't want to use an indicator to do this and I want to assume that everything about the two charts is identical, same time frame, same instrument, etc, except for this identification parameter.

Thanks,
Fred

[NinjaTrader_Jim]

Hello PhineasPhred,

Thanks for your question.

We are starting to get into undocumented territory, but you may wish to access ChartControl.OwnerChart.GetHashCode() to get an integer that can be used as an identifier. This can be called from an indicator. If you would like to get a hash code externally, you consider checking the following in a loop through all windows.

foreach (var window in NinjaTrader.Core.Globals.AllWindows)
{
    // check if the found window is a Chart window, if not continue looking
    if (!(window is NinjaTrader.Gui.Chart.Chart)) continue;

    window.Dispatcher.InvokeAsync(new Action(() =>
    {
        // try to cast as a Chart, if it fails it will be null
        var foundChart = window as NinjaTrader.Gui.Chart.Chart;

        // make sure we found a chart
        if (foundChart == null) return;

        Print(foundChart.GetHashCode());

    }));

}

We look forward to assisting.

[PhineasPhred]

Hi Jim,

I actually thought about using GetHashCode() at one time, but wasn't sure if it was guaranteed to be unique for each chart, especially if both charts were the same. I'm assuming from your answer that I can rest assured.

Thanks for the quick response and help!