That looks OK to me. I do:
NSNotificationCenter *dnc = [NSNotificationCenter defaultCenter];
[dnc addObserver: self selector: @selector (didChangeScreenParameters:)
name: NSApplicationDidChangeScreenParametersNotification object: nil];
...
- (void) didChangeScreenParameters: (NSNotification *) notification
{
...
}
What object is 'self' in your scenario? It needs to exist for the life of the
app, obviously.
Paul Sanders.
----- Original Message -----
From: Jacob Schwartz
To: Paul Sanders
Cc: [email protected]
Sent: Tuesday, December 29, 2009 6:47 PM
Subject: Re: Notification when displays are detected?
I tried this one but it doesn't seem to be doing anything, so odds are I am
adding the observer wrong. I am a little new at this, if that wasn't obvious
haha.
// Second notification, when the screens change
[nc addObserver:self
selector:@selector(handleBackgroundChange:)
name:NSApplicationDidChangeScreenParametersNotification
object:nil];
The handleBackgroundChange is just supposed to print a message with NSLog.
-Jake Schwartz
On Dec 29, 2009, at 1:26 PM, Paul Sanders wrote:
NSApplicationDidChangeScreenParametersNotification
Returns a stale value for [NSScreen visibleFrame] after the dock
moves from one screen to another (on Snow Leopard at least).
Solution: wait a second or so, then ask again.
This notification is also sent when the screen arrangement or
dock is reconfigured. I find this useful.
Paul Sanders.
----- Original Message -----
From: "Jacob Schwartz" <[email protected]>
To: <[email protected]>
Sent: Tuesday, December 29, 2009 6:15 PM
Subject: Notification when displays are detected?
Hey all,
After some searching through the API, which apparently I am not
good at, I figured asking was easier. Does anyone know of a
notification that gets posted when another screen is
added/detected. I figured it would be in NSWorkspace but I
didn't see anything. Thanks.
-Jake Schwartz
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