on_touch_start

zng::touch

Function on_touch_start 

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

P Touch contact started over the widget, it is enabled and cursor capture allows it.

§Preview

You can preview this event using on_pre_touch_start. 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.