Invoked when there’s a change in the text after the receiver gains first responder status.
- macOS 10.0+
Text Did Begin Editing Notification
This method’s default behavior is to post an
NSControl along with the receiving object to the default notification center. The posted notification’s user info contains the contents of notification’s user info dictionary, plus an additional key-value pair. The additional key is “
NSField”; the value for this key is the text object that began editing.