on_drag_start

zng::drag_drop

Function on_drag_start 

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

P Draggable widget started dragging.

To receive this event in a widget set draggable to true.

ยงRoute

This event property uses the normal route, that is, the handler is called after the children widget handlers and after the $pn_pre_ident handlers.