onMouseDown property
EventStream<MouseEvent>
onMouseDown
Dispatched when a user presses the pointing device button over an InteractiveObject instance.
If the target is a SimpleButton instance, the SimpleButton instance displays the downState display object as the default behavior. If the target is a selectable text field, the text field begins selection as the default behavior.
Implementation
EventStream<MouseEvent> get onMouseDown =>
InteractiveObject.mouseDownEvent.forTarget(this);