IDragGestureHelper
Implemented by elements that want to customize when a should begin tracking input. The gesture recognizer consults the helper before transitioning from pending to active, giving the owner a chance to veto or fast-track the gesture.
Methods
Return true to allow the gesture to start tracking the pointer at the given position, or false to continue waiting (typically until the minimum drag distance is reached).
Parameters
gesture
The drag gesture being evaluated.
position
The current pointer position, in the gesture's coordinate space.
Returns
boolean
