'Declaration
 
Public Function New( _
   ByVal element As UIElement, _
   Optional ByVal mode As C1DragHelperMode, _
   Optional ByVal initialThreshold As Double, _
   Optional ByVal captureElementOnPointerPressed As Boolean, _
   Optional ByVal handledEventsToo As Boolean, _
   Optional ByVal useManipulationEvents As Boolean, _
   Optional ByVal useRightButton As Boolean _
)

public C1DragHelper( 
   UIElement element,
   C1DragHelperMode mode,
   double initialThreshold,
   bool captureElementOnPointerPressed,
   bool handledEventsToo,
   bool useManipulationEvents,
   bool useRightButton
)

Parameters

element

An System.Windows.UIElement on which the drag gesture will be listened.

mode

Indicates the sort of drag to be listened. Combine inertia flag with other flags so that DragDelta events are raised after the manipulation finish. i.e. C1DragHelperMode.FreeDrag | C1DragHelperMode.Inertia

initialThreshold

Specifies the number of pixels the gesture will have to pass in order to start. if 0 is set the gesture will start on pointer down, and captureElementOnPointerPressed will be true despite the specified parameter, otherwise the gesture will start on mouse move, default value is 1

captureElementOnPointerPressed

Indicates whether the element will be captured in pointer pressed event (MouseLeftButtonDown in SL and WPF and PointerPressed in WinRT) or in the first pointer move event (MouseMove in SL and WPF and PointerMoved in WinRT). If initialThreshold is 0 this parameter will be ignored.Capturing the element on mouse down will cause Click, DoubleClick and MouseLeftButtonUp events not to be fired in sub-elements (nested elements in the visual tree), whereas capturing the element on the first mouse move can make it difficult for final users to drag small elements quickly.

handledEventsToo

Indicates whether drag gestures will be listened despite mouse events were already handled. (It only applies to mouse gestures)

useManipulationEvents

When set to true it uses Manipulation events to listen to the gesture, otherwise itwill use Pointer events.

useRightButton

if set to true it will listen to mouse right button down/up events instead of left button events(In WinRT it only applies if useManipulationEvents is set to false).

Reference

C1DragHelper Class
C1DragHelper Members