Hotkey Indikator for DrawingTools

[sidlercom80]

Hi, I have created an indicator that processes my own hotkeys. The goal is, for example:

1. Ctrl + V creates a horizontal, solid, yellow line with a width of 2.
2. Ctrl + B creates a horizontal. dash, red, line with a width of 3.

private void EventHandlerKeyPressedV(object sender, RoutedEventArgs e)
{

}

with

SendKeys.SendWait("{F6}");

Does not help me, because only the already existing template is taken. I should somehow be able to define the color, style, wide etc. before sending the command and only then send the create command. Anyone has any idea how best to approach this?

[NinjaTrader_ChelseaB]

Hello sidlercom80,

I'm not certain if you want to program your own hotkeys or if you want to trigger a drawing tool to be drawn with the mouse by its pre-mapped hotkey.

For capturing your own keypresses take a look these examples.

https://ninjatrader.com/support/forum/forum/ninjatrader-8/platform-technical-support-aa/108264-can-wav-file-be-activated-when-order-entry-hot-key-is-pressed?p=831756#post831756

https://ninjatraderecosystem.com/user-app-share-download/a1marketinternals-nyse-tick-and-advance-decline-market-internals/

For triggering a drawing tool to begin drawing with the mouse have a look at the example attached and the link to the mahtoolbar on the user app share linked below.

https://ninjatraderecosystem.com/user-app-share-download/a-mahtoolbar-2/

When triggering a drawing tool to begin drawing with the mouse, it will use the default template. But you draw the object with a Draw method you can specify the color and other properties.

[sidlercom80]

Hi _ChelseaB, super, thank you! I'll take a look at it.

Another question: is it possible to find out which drawing object was last added to a chart?

As an example: I add a horizontal line to the chart with "F6". This object is then the last object added to the chart. I could then use it either to change the stroke with this method, or as in the code when it was selected.

foreach (IChartObject obj in ChartControl.ChartObjects.ToList())
{[INDENT]if (draw == null || !draw.IsUserDrawn)
{[/INDENT][INDENT=2]continue;[/INDENT][INDENT]}

if (draw.IsSelected)
{[/INDENT][INDENT=2]draw.Stroke = TestStroke;[/INDENT][INDENT]}[/INDENT]
  }

[NinjaTrader_ChelseaB]

Hello sidlercom80,

Likely this will be the last object index in the DrawObjects collection.

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

[sidlercom80]

Hi _ChelseaB, is there an eventhandler that is activated when adding a drawing object (line, rectangle etc.) to a chart? I would like to know if, for example, a line has been added to the chart.

[NinjaTrader_ChelseaB]

Hello sidlercom80,

There is not. It would require unsupported code to add a property changed notification.

Fortunately, there is an example with that worked out though.

http://ninjatrader.com/support/forum/showthread.php?p=476585#post476585

[sidlercom80]

Hi _ChelseaB, thank you for your help. I looked at the example and found that the line in the script (SamplePropertyChangedIndicator.cs) is always zero. The script is not executed from here, why?

[NinjaTrader_ChelseaB]

Hello sidlercom80,

Possibly the object drawn was not a SamplePropertyChangedDrawingTool?

What did you draw?

[sidlercom80]

I wanted to draw a normal line, or rectangle. Do I get something wrong? Does the line have to be drawn from the "SamplePropertyChangedDrawingTool.cs" to be recognized?

[NinjaTrader_ChelseaB]

Hello sidlercom80,

The sample code is comparing to SamplePropertyChangedDrawingTool.
using (SamplePropertyChangedDrawingTool line = e.NewItems[0] as SamplePropertyChangedDrawingTool)

If you want to find a line, then compare to a line and not the SamplePropertyChangedDrawingTool.

[sidlercom80]

Thank you, I got it, thank you for your patience ;-)