On 26 Jun, 2014, at 8:15 am, Rick Mann <rm...@latencyzero.com> wrote:

> 
> On Jun 25, 2014, at 17:10 , Roland King <r...@rols.org> wrote:
> 
>> If there's a UIViewController somewhere, it's in the responder chain. I 
>> would expect the UIButton, when hooked up in IB, just walks up that looking 
>> for the view controller.
> 
> So that brings up an unanswered question from yesterday. How can I 
> programmatically send a message to the first responder?
> 
> 

You can't, well you can, if your message looks like an action or can be made to 
look like an action you can use UIApplication sendAction:to:from:forEvent, with 
'to' as nil and off it goes up the chain. So you should be able, if you wanted, 
to implement your own selector in the UIViewController subclass which has the 
signature of an action message and call it with that UIApplication method and 
the responder chain will find it for you. 

My bug requesting that the current firstResponder be made available as a 
property on UIApplication remains duped and open after 3 years. 


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