Re: NSTextField keyboard event
Re: NSTextField keyboard event
- Subject: Re: NSTextField keyboard event
- From: "peiyuan" <email@hidden>
- Date: Thu, 6 Mar 2008 11:57:43 +0800
- Importance: Normal
Big thanks.
The answer is the "
isPartialStringValid:proposedSelectedRange:originalString:originalSelectedRange:errorDescription".
Thank you again.
Pei-Yuan
@KCodes
--------------------------------------------------
From: "Aki Inoue" <email@hidden>
Sent: Thursday, March 06, 2008 10:51 AM
To: "peiyuan" <email@hidden>
Cc: "I. Savant" <email@hidden>; "Cocoa"
<email@hidden>
Subject: Re: NSTextField keyboard event
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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