Sends the double-click action message to the target of the receiver.
- macOS 10.0+
If the receiver doesn't have a double-click action, the double-click action message of the selected cell (as returned by
selected) is sent to the selected cell’s target. Finally, if the selected cell also has no action, then the single-click action of the receiver is sent to the target of the receiver.
If the selected cell is disabled, this method does nothing.
Your code shouldn’t invoke this method; it’s sent in response to a double-click event in the
NSMatrix. Override it if you need to change the search order for an action to send.