on_window_close_requested

zng::window

Function on_window_close_requested 

Source 
pub fn on_window_close_requested(
    child: impl IntoUiNode,
    handler: Box<dyn FnMut(&WindowCloseRequestedArgs) -> HandlerResult + Send>,
) -> UiNode
Expand description

P On window close requested.

Calling propagation().stop() on this event cancels the window close.

§Preview

You can preview this event using on_pre_window_close_requested. Otherwise the handler is only called after the widget content has a chance to stop propagation.

§Async

You can use async event handlers with this property.