Gets the offset from the start point.
If the @gesture is active, this function returns %TRUE and fills in @x and @y with the coordinates of the current point, as an offset to the starting drag point.
X offset for the current point
Y offset for the current point
%TRUE if the gesture is active
See Implementation
Gets the offset from the start point.
If the @gesture is active, this function returns %TRUE and fills in @x and @y with the coordinates of the current point, as an offset to the starting drag point.