Method

GtkGestureZoomget_scale_delta

Declaration [src]

gdouble
gtk_gesture_zoom_get_scale_delta (
  GtkGestureZoom* gesture
)

Description [src]

If gesture is active, this function returns the zooming difference since the gesture was recognized (hence the starting point is considered 1:1). If gesture is not active, 1 is returned.

Available since:3.14

Return value

Returns: double
 

The scale delta.