NT8 OnMouseDown

[ren37]

Hello

How I get know if user clicked mouse button on the chart?

[NinjaTrader_ChelseaB]

Hello ren37,

Below I am providing a link to the NinjaTrader 8 Beta section of the forums (for future reference).
http://ninjatrader.com/support/forum...splay.php?f=59

To find if a user has clicked with the mouse, an event handler (method) will need to be added to the mouse down event.

Attached is an example that demonstrates.

[Antny]

Hello ren37,

Below I am providing a link to the NinjaTrader 8 Beta section of the forums (for future reference).

http://ninjatrader.com/support/forum/forumdisplay.php?f=59

To find if a user has clicked with the mouse, an event handler (method) will need to be added to the mouse down event.

Attached is an example that demonstrates.

I greatly appreciate the example indicator. But, after having experimented with it, I see it does not create objects relevant to the chart...but instead just creates objects on the chart. There is a simple way to make this indicator example immensely more useful. How do we convert a Point to a ChartAnchor? If this indicator demonstrated that, we could use the example to create, and modify objects on the chart, which are linked to the time and price.

[NinjaTrader_ChelseaB]

Hello Antny,

Are you trying to create a drawing tool?

With the example I have provided, the y value comes from the mouse click, and is used to draw the dot as a rendered sharpdx object (not a drawing tool) from the indicator. This is not a drawing object script.

To convert a y value to a price use:
<theChartsScale>.GetValueByY();

http://ninjatrader.com/support/helpGuides/nt8/en-us/getvaluebyy.htm

There is no documented code that provides a way to create anchors in an indicator. The anchors are created automatically by the drawing tool script that is being called from the indicator (like Draw.Dot()).

Anchors from a drawing object would come from a drawing object script (for example when you clicking a drawing object from the drawing object menu on the chart toolbar) using the CreateAnchor() method from within the DrawingTool namespace.
http://ninjatrader.com/support/helpG...eateanchor.htm

[Antny]

Hello Antny,

Are you trying to create a drawing tool?

With the example I have provided, the y value comes from the mouse click, and is used to draw the dot as a rendered sharpdx object (not a drawing tool) from the indicator. This is not a drawing object script.

To convert a y value to a price use:
<theChartsScale>.GetValueByY();

http://ninjatrader.com/support/helpGuides/nt8/en-us/getvaluebyy.htm

There is no documented code that provides a way to create anchors in an indicator. The anchors are created automatically by the drawing tool script that is being called from the indicator (like Draw.Dot()).

Anchors from a drawing object would come from a drawing object script (for example when you clicking a drawing object from the drawing object menu on the chart toolbar) using the CreateAnchor() method from within the DrawingTool namespace.
http://ninjatrader.com/support/helpG...eateanchor.htm

That is the basic idea. The problem with the CreateAnchor() info is, as far as i can tell, it requires all three bits of information (mouse-click point, time, and price) That makes it useless to me. I can get the mouse click point, but the time and price? There is no method (to my knowledge) that gives the time and price where the mouse cursor is. All I need to be able to do is recreate the actions of the line drawing tool... I click my custom indicator button, click on the chart to lock in my first anchor, and the second anchor tracks the location of the mouse until I click again, locking in the second anchor. The tool I am making is much more complex than any of the drawing tools. But, I can make it happen if I can just figure out how to do this.

[NinjaTrader_ChelseaB]

Hello Antny,

There are methods that can give you the time and price of where you mouse have clicked. One of these I have mentioned in my previous post.

The mouse click returns x and y values.

To convert a y value to a price use:
<theChartsScale>.GetValueByY();

http://ninjatrader.com/support/helpGuides/nt8/en-us/getvaluebyy.htm

To convert an x value to a time use:
<theChartsControl>.GetSlotIndexByX();

http://ninjatrader.com/support/helpGuides/nt8/en-us/getslotindexbyx.htm

[trader3419]

How can I access ChartScale from within a custom function?
It seems I can only access it from within OnRender()

[NinjaTrader_ChelseaB]

Hello trader3419,

The ChartScale is provided by OnRender. After it is available you could save this to a handle (variable) and use this how you would like.

http://ninjatrader.com/support/forum/showthread.php?p=469276#post469276

[trader3419]

Thanks Chelsea!