pub unsafe extern "C" fn gtk_calendar_set_detail_func(
calendar: *mut GtkCalendar,
func: GtkCalendarDetailFunc,
data: gpointer,
destroy: GDestroyNotify,
)
pub unsafe extern "C" fn gtk_calendar_set_detail_func(
calendar: *mut GtkCalendar,
func: GtkCalendarDetailFunc,
data: gpointer,
destroy: GDestroyNotify,
)