Requests permission to begin editing a text object.
- macOS 10.0+
The object to begin editing.
true if editing should be allowed to occur,
If the receiver isn’t editable, returns
false immediately. If it is editable and its delegate responds to
control(_:, this invokes that method and returns the result. Otherwise it simply returns
true to allow editing to occur. See the
NSControl class specification for more information on the text delegate method.