Trigger Button Press via Gaze

[Anonymous]

Hey Guys,
i am kinda new to C# and this is also my first time playing around with the Tobii EyeX Eye Tracker.

I want to Design a virutal Keyboard, which should be controlled via Gaze.
I already Designed a WPF Layout with some Buttons, which have the IsGazeAware Enabled and a Delay Time which represent a so called “dwell time”, so that the button will only be “pressed” after gazing for e.g 1000ms.

My Question now is: how can i “trigger” a button press. Can i somehow call a method in the <Trigger> Tag, that e.g prints a letter in my textbox or so?
Or is there any better way to do it?

kind regards
David

[Alex [Tobii]]

H @dabinder !

You can trigger “Activate” event using following code:

            host.Commands.Input.SendActivationModeOn();
            host.Commands.Input.SendActivation();
            host.Commands.Input.SendActivationModeOff();

https://tobii.github.io/CoreSDK/articles/interactors.html

It might also be interesting to look at some existing virtual keyboard projects:
https://github.com/OptiKey/OptiKey/wiki

[Anonymous]

How can I specify, at which button I viewed?

[Alex [Tobii]]

I will understand it automatically if the button is marked as gaze aware:
https://tobii.github.io/CoreSDK/articles/wpf.html

[Emy]

Hello! The link above doesn’t work.

[Grant [Tobii]]

Hi Emy, the Tobii Core SDK has since been deprecated and replaced by the new Tobii Interaction Library API which has support for C# & C++

You can download the package and view our getting started guide @

Getting Started

Check it out and let us know how you get on! Best Wishes.

[Author]

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