Warning
gtk_style_context_notify_state_change has been deprecated since version 3.6 and should not be used in newly-written code. This function does nothing.
Notifies a state change on context, so if the current style makes use
of transition animations, one will be started so all rendered elements
under region_id are animated for state state being set to value
state_value.
The window parameter is used in order to invalidate the rendered area
as the animation runs, so make sure it is the same window that is being
rendered on by the gtk_render_*() functions.
If region_id is NULL, all rendered elements using context will be
affected by this state transition.
As a practical example, a GtkButton notifying a state transition on
Warning gtk_style_context_notify_state_change has been deprecated since version 3.6 and should not be used in newly-written code. This function does nothing. Notifies a state change on context, so if the current style makes use of transition animations, one will be started so all rendered elements under region_id are animated for state state being set to value state_value. The window parameter is used in order to invalidate the rendered area as the animation runs, so make sure it is the same window that is being rendered on by the gtk_render_*() functions. If region_id is NULL, all rendered elements using context will be affected by this state transition. As a practical example, a GtkButton notifying a state transition on