Requests permission for
a to move
- macOS 10.0+
If the client returns
true the ruler view allows the user to move the marker; if the client returns
false the marker doesn’t move.
The user’s ability to move a marker is typically set on the marker itself, using NSRulerMarker’s
is method. You should use this client view method only when the marker’s movability can vary depending on a variable condition (for example, if graphic items can be locked down to prevent them from being inadvertently moved).