Function on_settings 

pub fn on_settings(
    child: impl IntoUiNode,
    handler: Box<dyn FnMut(&CommandArgs) -> HandlerResult + Send>,
) -> UiNode

P On settings command.

Receives SETTINGS_CMD command events scoped on the widget.

Preview

You can preview this command event using on_pre_settings. 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.

Enabled

You can use the can_settings context property to disable the command handle. When disabled the handler is not called and the command handle signals as disabled.