want to use hidden RelayCommand in NinjaTrader.Gui.Tools.RelayCommand

[llanqui]

Ok, I know for sure that Ninja won't support this, but maybe a C# guru will know...



in my search to get control of the up-arrow and down-arrow keys on a chart I found ChatGpt suggestings to use KeyBinding.

the code that was suggested to do this I uses RelayCommand

I was given that code, but on compile it noted that there was already a RelayCommand in Ninja.Gui.Tools

so, I would prefer to use that

any suggestions?

[llanqui]

here is the binding code

KeyBinding shiftUpBinding = new KeyBinding();
shiftUpBinding.Key = Key.Up;
shiftUpBinding.Modifiers = ModifierKeys.Shift;
shiftUpBinding.Command = new RelayCommand(ShiftUpCommandExecute);
this.InputBindings.Add(shiftUpBinding);

KeyBinding controlDownBinding = new KeyBinding();
controlDownBinding.Key = Key.Down;
controlDownBinding.Modifiers = ModifierKeys.Control;
controlDownBinding.Command = new RelayCommand(ControlDownCommandExecute);
this.InputBindings.Add(controlDownBinding);

[llanqui]

Ok, well when I use the Ninja RelayCommand it does not execute the key binding target

[NinjaTrader_ChelseaB]

Hello llanqui,

As you expected using RelayCommand is not supported and is an internal core method within NinjaTrader.

Below are links to some scripts that capture key presses.

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

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

https://ninjatraderecosystem.com/user-app-share-download/a1chartnotes/

[llanqui]

thank you...

I'm trying to use the up and down arrow keys....

[NinjaTrader_ChelseaB]

Hello llanqui,

I expected comparing the e.Key to Key.Up in the previewkeydown event in the example would suffice, however after a google search i'm finding the Key.Up (up arrow key) does not trigger the previewkeydown or keydown events, but does trigger the keyup event.
This forum gives this a mention.

https://www.telerik.com/forums/keydown-event-not-triggering-on-arrow-up-and-down

private void TextBox_KeyUp(object sender, KeyEventArgs e)
{
if (e.Key == Key.Up)
Print("Key.Up");
}

Note, this would interfere with the intended functionality of the platform and would not be supported to do.

[llanqui]

Ok, but that may not work for me....it might, but it will make a tiny delay if it works I'll try it.

(I'm using it for order entry...shift-up arrow = order at ask, control-down = order at bid, this way I don't have to move the mouse to submit these types or orders. I can't use a custom Ninja Hot key for this because my order submission first checks a series of rules before it will allow an order to be placed. The Ninja Hot keys will allow these combinations for Order Entry hotkey.

But it seems Ninja 8 is doing something so that I can't use the arrow keys on a key down....unless I use an external hot key program to get control of the arrow keys before Ninja does.

That is my current work around.

There was no problem in Ninja 7, previewkeydown worked