ModelHitTestFilterCallback Delegate

A callback delegate that can be assigned to the ModelFilter property of a transacted task.

Namespace:  Microsoft.Windows.Design.Interaction
Assembly:  Microsoft.Windows.Design.Interaction (in Microsoft.Windows.Design.Interaction.dll)

Syntax

'Declaration
Public Delegate Function ModelHitTestFilterCallback ( _
    potentialHitTestTarget As ModelItem _
) As HitTestFilterBehavior

'Usage
Dim instance As New ModelHitTestFilterCallback(AddressOf HandlerMethod)

public delegate HitTestFilterBehavior ModelHitTestFilterCallback(
    ModelItem potentialHitTestTarget
)

public delegate HitTestFilterBehavior ModelHitTestFilterCallback(
    ModelItem^ potentialHitTestTarget
)

JScript does not support delegates.

Parameters

• potentialHitTestTarget
  Type: Microsoft.Windows.Design.Model.ModelItem

  A model item under the mouse pointer.

Return Value

Type: System.Windows.Media.HitTestFilterBehavior
The filter behavior for this filter.

Remarks

If ModelHitTestFilterCallback is set, hit testing of items on the designer will be filtered through this callback. This allows you to ignore areas of the designer during drag and other transacted operations.

See Also

Reference

Microsoft.Windows.Design.Interaction Namespace

Other Resources

WPF Designer Extensibility