Updating price variable on mouse hover over price

[daigo1]

I am trying to make a dynamic variable capture the price that the mouse is currently hovering over on the chart, but this code seems to completely freeze NT8 when I enable the Strategy:

private ChartScale MyChartScale;

int Y;
double priceHover;

protected void MouseMoved(object sender, MouseEventArgs e)
{
    TriggerCustomEvent(o =>
    {
        Y = ChartingExtensions.ConvertToVerticalPixels(e.GetPosition(ChartControl as IInputElement).Y, ChartControl.PresentationSource);
        priceHover = MyChartScale.GetValueByY(Y);

        if (priceHover != MyChartScale.GetValueByY(Y))
        {
            Print(String.Format("{0}", priceHover));
        }
    }, null);
    e.Handled = true;
}

protected override void OnRender(ChartControl chartControl, ChartScale chartScale)
{
    base.OnRender(chartControl, chartScale);
    MyChartScale = chartScale;
}

[NinjaTrader_ChrisL]

Hi, thanks for your post.

I am not aware of a supported example for a mouse move event in NinjaTrader 8. I found this one for NinjaTrader 7:

https://ninjatraderecosystem.com/user-app-share-download/custom-crosshair/

I have asked my colleague if they know of any examples in NT8. Ill post them if we find any.

Thanks in advance for your patience.

[daigo1]

It actually looks like the chart is not freezing, but my crosshair is so I thought the chart was freezing. The code functions fine, but it breaks the crosshair completely (I am using local crosshair, but global crosshair also breaks). Any way to fix this?

[NinjaTrader_ChrisL]

Hi daigo1, I found this sample that will be helpful:

https://ninjatrader.com/support/forum/forum/historical-beta-archive/version-8-beta/80656-onrender-update-y-scaling-during-mouse-dragging

This example implements a mouse move event. It is not documented so I can not provide support for it beyond this point.

Please let me know if you have any questions.

[daigo1]

Thanks Chris. This works great!