Converting an indicator

[blar58]

I am converting an indicator from NT7 to Nt8.

I will need some help because I can't find the conversion code needed.
The expressions that I have problems with are the following :

the NT7 indicator uses :

ChartControl.CanvasTop and CanvasBottom
ChartControl.Size.Width
ChartControl.ChartPAnel.Invalidate
ChartControl.ActiveControl.HotSpot.Y
ChartControl.FixedPanelMaxRight
ChartControl.GetYByValue(this, this.ChartControl.FixedPanelMinRight
ChartControl.YAxisRangeTypeRight

Thank you for your help.

[NinjaTrader_PaulH]

Hello blar58,

I will investigate these undocumented items and will update this thread when I have further information.
Thanks in advance for your patience.

[NinjaTrader_PaulH]

Hello blar58,

Here is a list of most of the requested items and what I think are the equivalents:

CanvasTop: http://ninjatrader.com/support/helpG...chartpanel.htm
Canvasbottom: http://ninjatrader.com/support/helpG...chartpanel.htm
Width: http://ninjatrader.com/support/helpG...chartpanel.htm
Invalidate: http://ninjatrader.com/support/helpG...rcerefresh.htm
FixedPanelMaxRight: http://ninjatrader.com/support/helpG...chartpanel.htm
GetYByValue: http://ninjatrader.com/support/helpG...etvaluebyy.htm
YAxisRangeTypeRight: http://ninjatrader.com/support/helpG...chartpanel.htm


For ChartControl.ActiveControl.HotSpot.Y, please provide further information on how this is used so that we might find what you need for Ninjatrader 8.

[blar58]

Thank you very much Paul.

I can see that ChartPanel owns now the methods that used to be in ChartControl (in NT7).

I am not the one who created that indicator but here's how it is used in the code :

//Cursor HotSpot exploit. Only the "Hand" cursor has Y value of 1.
//if(e.Button == MouseButtons.Left && ChartControl.ActiveControl.Cursor.HotSpot.Y == 1)


Thanks

[NinjaTrader_PaulH]

Hello blar58,

Thanks for your reply.

We would be unable to advise further on that bit of code. Nearest thing would be http://ninjatrader.com/support/helpG...edownpoint.htm

Perhaps others in the community might assist on this.

[blar58]

Is seems that it tries to know if the mouse is showing a hand ?

something like that

[blar58]

I have also a Error on calling OnStsteChange method: Oject reference not set to an instnce of an object.
Here is my OnState Change method without the State.Default because I know it is not coming from that state :

else if (State == State.DataLoaded)
{
   if (ChartControl != null)
   {
        ChartControl.PreviewMouseLeftButtonDown += MouseDown_OnChart;
        ChartControl.PreviewMouseLeftButtonUp += MouseDrag_OnScale
        ChartControl.PreviewMouseMove += MouseDrag_OnChart;
        ChartControl.PreviewMouseWheel    +=EnableAutoScroll;					
    }
                   
}
else if (State == State.Historical)
{
        foreach (ChartPanel chartPanel in ChartControl.ChartPanels)
        {
     
         foreach (ChartScale scale in chartPanel.Scales)
         {
           if (scale.ScaleJustification == ScaleJustification.Right)
	scale.Properties.YAxisRangeType = YAxisRangeType.Fixed;
         }
        }
									}			
else if (State == State.Terminated)
{		
	if (ChartControl != null)
                {
                    ChartControl.PreviewMouseLeftButtonDown -= MouseDown_OnChart;
                    ChartControl.PreviewMouseLeftButtonUp -= MouseDrag_OnScale;
	      ChartControl.PreviewMouseMove -= MouseDrag_OnChart;
	      ChartControl.PreviewMouseWheel - = EnableAutoScroll;					
                }
				
		
	foreach (ChartPanel chartPanel in ChartControl.ChartPanels)
	{
	foreach (ChartScale scale in chartPanel.Scales)
	{
               if (scale.ScaleJustification == ScaleJustification.Right)
	      scale.Properties.YAxisRangeType = YAxisRangeType.Automatic;
	}
              }					   
}

[koganam]

I have also a Error on calling OnStsteChange method: Oject reference not set to an instnce of an object.
Here is my OnState Change method without the State.Default because I know it is not coming from that state :

else if (State == State.DataLoaded)
{
   if (ChartControl != null)
   {
        ChartControl.PreviewMouseLeftButtonDown += MouseDown_OnChart;
        ChartControl.PreviewMouseLeftButtonUp += MouseDrag_OnScale
        ChartControl.PreviewMouseMove += MouseDrag_OnChart;
        ChartControl.PreviewMouseWheel    +=EnableAutoScroll;					
    }
                   
}
else if (State == State.Historical)
{
        foreach (ChartPanel chartPanel in ChartControl.ChartPanels)
        {
     
         foreach (ChartScale scale in chartPanel.Scales)
         {
           if (scale.ScaleJustification == ScaleJustification.Right)
	scale.Properties.YAxisRangeType = YAxisRangeType.Fixed;
         }
        }
									}			
else if (State == State.Terminated)
{		
	if (ChartControl != null)
                {
                    ChartControl.PreviewMouseLeftButtonDown -= MouseDown_OnChart;
                    ChartControl.PreviewMouseLeftButtonUp -= MouseDrag_OnScale;
	      ChartControl.PreviewMouseMove -= MouseDrag_OnChart;
	      ChartControl.PreviewMouseWheel - = EnableAutoScroll;					
                }
				
		
	foreach (ChartPanel chartPanel in ChartControl.ChartPanels)
	{
	foreach (ChartScale scale in chartPanel.Scales)
	{
               if (scale.ScaleJustification == ScaleJustification.Right)
	      scale.Properties.YAxisRangeType = YAxisRangeType.Automatic;
	}
              }					   
}

And another one bites the dust!

You are using State.Terminated to unsubscribe from event handlers. You are being killed by unintended side-effects that so far are not going to be properly fixed.

ref: http://ninjatrader.com/support/forum...ate.terminated

There is a hacky, kludgy, workaround somewhere in that thread, that NT has decided to adopt as a solution instead of fixing the design.

[NinjaTrader_PatrickH]

I have also a Error on calling OnStsteChange method: Oject reference not set to an instnce of an object.

koganam is correct and is referring to the following post: http://ninjatrader.com/support/forum...0&postcount=17

Please let me know if you have any questions on that post.

I believe you would only need MouseDownPoint for the Y of where the mouse is during a button click: http://ninjatrader.com/support/helpG...edownpoint.htm