Function view_dispatcher_set_custom_event_callback 

pub unsafe extern "C" fn view_dispatcher_set_custom_event_callback(
    view_dispatcher: *mut ViewDispatcher,
    callback: ViewDispatcherCustomEventCallback,
)

Set custom event handler

Called on Custom Event, if it is not consumed by view

Arguments

• view_dispatcher - ViewDispatcher instance
• callback - ViewDispatcherCustomEventCallback instance