[ Version ( deprecated = true , deprecated_since = "2.6" ) ]
public uint mouse_button { get; }
Warning: mouse_button is deprecated since 2.6.
If the navigation associated with this policy decision was originally triggered by a mouse event, this property contains non-zero button number of the button triggering that event.
Use navigation_action instead
The button numbers match those from GDK. If the navigation was not triggered by a mouse event, the value of this property will be 0.