capturing mouse events?

[chuckt101]

Hello, is there a way to capture & respond to mouse clicks on charts? (Specifically chart draw objects)

[NinjaTrader_RyanM1]

Hello chuckt101,

NinjaScript doesn't offer support for this but since it's built with C# you have the capability. For reference you can check MSDN docs or maybe another community member can share their experience with it.

[chuckt101]

Thanks for the reply.

I wasn't sure whether the mouse events would be filtered by NT before being sent to Ninjascript but it sounds like they aren't?

[NinjaTrader_RyanM1]

There's no filtering done, but it's also not actively looking for mouse events by default. There's likely additional using statement you need to add to any script for the right namespace.

[Dexter]

Hi chuckt101, you can easily capture mouse x/y coordinates by adding an event handler to your indicators underlying control.

Add something like this to your OnStartUp():

ChartControl.MouseMove += mouseMoveHandler;

And add the method in your indicator

private void mouseMoveHandler(object sender, MouseEventArgs e)
{
    // do whatever with mouse coords contained in e here
    Print(String.Format("mouseMoveHandler X = {0} Y = {1}!", e.X, e.Y))
}

X and Y are just examples, you can do things with clicks, mouse-wheel, etc. Hope this helps

edit: if you simply want to capture clicks, you'll want to use the MouseDown event versus MouseMove. You can find a breakdown of mouse events on MSDN here http://msdn.microsoft.com/en-us/libr...mousedown.aspx

[chuckt101]

Thanks Dexter, that did help

[CriticalTrader]

Did this code snippet actually work for you?

[johne5]

dDrawABC uses this feature

Check out the dDrawABC indicator. It uses mouse clicks.

http://www.ninjatrader.com/support/forum/showthread.php?t=36656

[CriticalTrader]

Thank you johne5. That revealed my mistake....needed MouseDown on the ChartPanel...makes sense (now!).