> On 12 Mar 2015, at 17:46, Steve Mills <sjmi...@mac.com> wrote:
> 
> On Mar 12, 2015, at 11:04:55, Patrick J. Collins 
> <patr...@collinatorstudios.com> wrote:
>> 
>> I hooked up an action from IB to my view controller, but I don't see an
>> option for where to define what kind of action it is...  So my problem
>> is events are only being fired when a textfield stops being edited.  I
>> would like it to fire anytime a key is pressed,  What is the best way to
>> do this currently?
> 
> I'm not aware of a way to do that. Have you tried subclassing NSTextfield and 
> overriding keyDown, and calling the action handler from there?

Please don’t do that. NSTextField already provides such messaging to its 
delegate:

https://developer.apple.com/library/mac/documentation/Cocoa/Reference/ApplicationKit/Classes/NSTextField_Class/index.html#//apple_ref/occ/instm/NSTextField/textDidChange:


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