Re: NSTextField keyboard event

FROM : Aki Inoue
DATE : Thu Mar 06 03:51:21 2008

Look at http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Classes/NSFormatter_Class/Reference/Reference.html#/
/apple_ref/occ/instm/NSFormatter/
isPartialStringValid:proposedSelectedRange:originalString:originalSelectedRange:errorDescription
:

Aki

On 2008/03/05, at 17:34, peiyuan wrote:

> Not exactly.
>
> Can NSFormatter monitor user's key input?
> I don't find any docs about monitoring user input in NSFormatter.
> I supposed that what the NSFormatter does is after you finish 
> editing, it would change the content.
>
> This is not the way I want. I want a real time feedback, that is, 
> even user press a number key, the textfield will not show the number 
> at all (without leaving the focus of the textfield).
>
> Pei-Yuan
>
>
>

>>> I have a window which contains several NSTextField. In these 
>>> NSTextField, I want that when a user presses a key which is not a 
>>> number ( 0-9), the active NSTextField will not accept the key 
>>> input  (that is, it does nothing).

>>
>>  This looks like a job for NSFormatter ...
>>
>> --
>> I.S.

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