Re: dictionary as contextInfo in alert sheet
Re: dictionary as contextInfo in alert sheet
- Subject: Re: dictionary as contextInfo in alert sheet
- From: j o a r <email@hidden>
- Date: Wed, 2 May 2007 09:56:44 +0200
On 2 maj 2007, at 09.37, Ron Fleckner wrote:
I want to pass a dictionary as the context info in an alert sheet.
I'm using NSBeginAlertSheet(). If I add a button to the sheet and
pass that button as the contextInfo, I can access the button's
(switch button) value OK in the sheet's didEnd method. But for
some reason that I don't know, passing a dictionary doesn't work.
My goal is to pass the button as well as an int (wrapped as an
NSNumber of course).
You probably have a memory management error with passing the dictionary.
Try to retain the dictionary before passing it as the context, and
then release it when you get it back and and are done with it.
I'll leave it as an exercise for the reader to figure out why you
might need to do this, and why you wouldn't need to do it for the
button!
Passing the button with the context dictionary should in the general
case not be necessary, as if you have a reference to the button
before opening the sheet, you typically also have a reference to it
in the callback method after the sheet is closed. Obviously, you
might have a design where this is not the case.
j o a r
Attachment:
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden