Signal

GtkGestureZoom::scale-changed

Declaration 

void
scale_changed (
  GtkGestureZoom* self,
  gdouble scale,
  gpointer user_data
)

Description [src]

This signal is emitted whenever the distance between both tracked sequences changes.

Default handler:

The default handler is called before the handlers added via g_signal_connect().

Available since:3.14

Parameters

scale

Type: gdouble

Scale delta, taking the initial state as 1:1