c# - Kinect detect handpointer hover on tilebutton -

i'm trying detect hovering (like onmouseover) on tilebutton, has build in hand pointer. cannot find build in event , i've tried gives me exception ( invocation of constructor on type 'microsoft.kinect.toolkit.controls.kinectuserviewer' matches specified binding constraints threw exception'

xaml giving exception:

 <k:kinectuserviewer k:kinectregion.kinectregion="{binding elementname=kinectregion}"     horizontalalignment="center" height="150" verticalalignment="top" width="150"     canvas.left="820"/>         <k:kinectregion kinectsensor="{binding kinect, elementname=kinectsensorchooser1}"     height="919" width="1920" x:name="kinectregion" canvas.top="151"> 

the buttons automatically created forloop.

cs:

public static readonly routedevent handpointerenterevent = eventmanager.registerroutedevent(         "handpointerenter", routingstrategy.direct, typeof(eventhandler<handpointereventargs>), typeof(kinectregion));      public static readonly routedevent handpointerleaveevent = eventmanager.registerroutedevent(         "handpointerleave", routingstrategy.direct, typeof(eventhandler<handpointereventargs>), typeof(kinectregion));  ...   public mainwindow()     {         initializecomponent();          kinectregion.addhandpointerenterhandler(this, this.onhandpointerenter);         kinectregion.addhandpointerleavehandler(this, this.onhandpointerleave);  ....  private void onhandpointerenter(object sender, handpointereventargs handpointereventargs)     {         this.close();//trying see if works     }     private void onhandpointerleave(object sender, handpointereventargs handpointereventargs)     {         this.close();//trying see if works     } 

what i've tried comes link: hand on button event in kinect sdk 1.7

however, if remove first 2 lines (public static), program works hover isnt detected. lines it'll throw exception.

basically i'm trying first detect hover , close program (gives me idea if works or not).

thanks help

your edition

kinectregion.addhandpointerenterhandler(this, this.onhandpointerenter); kinectregion.addhandpointerleavehandler(this, this.onhandpointerleave); 

first parameter 'this' means form

but needs "kinecttilebutton"

my edition - works.

kinectregion.addhandpointerenterhandler(this.kinecttilebuttonname, this.onhandpointerenter); kinectregion.addhandpointerleavehandler(this.kinecttilebuttonname, this.onhandpointerleave);