If there are touch sequences being currently handled by gesture, returns true and fills in x and y with the center of the bounding box containing all active touches.
Otherwise, false will be returned.
X coordinate for the bounding box center
Y coordinate for the bounding box center
false if no active touches are present, true otherwise
If there are touch sequences being currently handled by gesture, returns true and fills in x and y with the center of the bounding box containing all active touches.
Otherwise, false will be returned.