Shows the popover anchored to the specified view.
- macOS 10.7+
The rectangle within
positioningrelative to which the popover should be positioned. Normally set to the bounds of
positioning. May be an empty rectangle, which will default to the bounds of
The view relative to which the popover should be positioned. Causes the method to raise
The edge of
positioningthe popover should prefer to be anchored to.