Hand over button event in Kinect SDK 1.7

Question

I am creating a WPF application using Kinect SDK 1.7 and I need to count how many times user place hand over the button (not push, just place over). I found only an event responsible for pushing the button in XAML

<k:KinectTileButton Label="Click" Click="PushButtonEvent"></k:KinectTileButton>

I can't find which event is responsible for placing hand over the button (if this event exists). Maybe you've got some idea which event would do that? Or how to resolve this problem in another way?

This question is too vague, you need to provide more information about what you're trying to do and what environment you're using. Is this for the Xbox or for Kinect for Windows? What have you tried already? — Clint

Nicholas Pappas Nicholas Pappas · Accepted Answer · 2013-04-08T16:30:14

The KinectTileButton supports the follow events for the hand cursor, which can be subscribed to and acted upon to your desire:

public static readonly RoutedEvent HandPointerMoveEvent = EventManager.RegisterRoutedEvent(
    "HandPointerMove", RoutingStrategy.Bubble, typeof(EventHandler<HandPointerEventArgs>), typeof(KinectRegion));

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 static readonly RoutedEvent HandPointerPressEvent = EventManager.RegisterRoutedEvent(
    "HandPointerPress", RoutingStrategy.Bubble, typeof(EventHandler<HandPointerEventArgs>), typeof(KinectRegion));

public static readonly RoutedEvent HandPointerPressReleaseEvent = EventManager.RegisterRoutedEvent(
    "HandPointerPressRelease", RoutingStrategy.Bubble, typeof(EventHandler<HandPointerEventArgs>), typeof(KinectRegion));

public static readonly RoutedEvent HandPointerGripEvent = EventManager.RegisterRoutedEvent(
    "HandPointerGrip", RoutingStrategy.Bubble, typeof(EventHandler<HandPointerEventArgs>), typeof(KinectRegion));

public static readonly RoutedEvent HandPointerGripReleaseEvent = EventManager.RegisterRoutedEvent(
    "HandPointerGripRelease", RoutingStrategy.Bubble, typeof(EventHandler<HandPointerEventArgs>), typeof(KinectRegion));

public static readonly RoutedEvent HandPointerGotCaptureEvent = EventManager.RegisterRoutedEvent(
    "HandPointerGotCapture", RoutingStrategy.Direct, typeof(EventHandler<HandPointerEventArgs>), typeof(KinectRegion));

public static readonly RoutedEvent HandPointerLostCaptureEvent = EventManager.RegisterRoutedEvent(
    "HandPointerLostCapture", RoutingStrategy.Direct, typeof(EventHandler<HandPointerEventArgs>), typeof(KinectRegion));

public static readonly RoutedEvent QueryInteractionStatusEvent = EventManager.RegisterRoutedEvent(
    "QueryInteractionStatus", RoutingStrategy.Bubble, typeof(EventHandler<QueryInteractionStatusEventArgs>), typeof(KinectRegion));

The InitializeKinectButtonBase function sets up the default behavior for the buttons:

private void InitializeKinectButtonBase()
{
    KinectRegion.AddHandPointerPressHandler(this, this.OnHandPointerPress);
    KinectRegion.AddHandPointerGotCaptureHandler(this, this.OnHandPointerCaptured);
    KinectRegion.AddHandPointerPressReleaseHandler(this, this.OnHandPointerPressRelease);
    KinectRegion.AddHandPointerLostCaptureHandler(this, this.OnHandPointerLostCapture);
    KinectRegion.AddHandPointerEnterHandler(this, this.OnHandPointerEnter);
    KinectRegion.AddHandPointerLeaveHandler(this, this.OnHandPointerLeave);

    KinectRegion.SetIsPressTarget(this, true);
}

You can do the same in wherever you are actually defining the button in the UI. Hook the HandPointerEnter and the HandPointerLeave handlers and you can then count how many times a user moves the hand cursor into and out of the region.

Hand over button event in Kinect SDK 1.7

2 Answers