[obj-c] not key value coding-compliant for the key NSDevicePath or F#$King Docs!! - Tilted Forum Project Discussion Community

juanvaldes · 01-25-2004, 12:17 AM

okay so in my application I have one of my classes register for the "NSWorkspaceDidUnmountNotification" notification. Fine. Working, when I eject a volume I get the notification and it calls my function. Cool up to here.

Here is the code in said function.
Note: NSDictionary is a hashtable (if you've never encountered the term)

PHP Code:


			
NSDictionary *instructions = [note object];

NSLog(@"mediaWasEjected - %@", [instructions valueForKey:@"NSDevicePath"]);

But when it executes I get this error message.

Quote:

2004-01-24 23:58:41.416 iMedia[8611] Exception raised during posting of notification. Ignored. exception: [<NSWorkspace 0x33c2e0> valueForUndefinedKey:]: this class is not key value coding-compliant for the key NSDevicePath.

from apple docs, Notifications are at the bottom.

Quote:

NSWorkspaceDidUnmountNotification
Posted when the Finder has unmounted a device.

The notification object is the shared NSWorkspace instance. The userInfo dictionary contains the following information:

Key_______________Value
@"NSDevicePath" ____The path where the device was previously mounted, as a string.

So I get the dictionary and ask it for the value with key @"NSDevicePath" but the dictionary says "Nope" and raises a exception.

*sigh*
okay I feel better now.

juanvaldes · 01-25-2004, 12:31 AM

Nevermind!

Love you dear

cheerios · 01-25-2004, 12:32 AM

cheers debugging saves the day again!

"did you check the obvious?"

juanvaldes · 01-25-2004, 12:40 AM

aka "huh?, what are you doing here?"

then I pick up the book I was to lazy to check.

and if anyone cares:

For some reason I needed to ask for the dictionary with the userInfo: method not object: like with other notifications.

01-25-2004, 12:31 AM	#2 (permalink)
juanvaldes Banned Location: shittown, CA	Nevermind! Love you dear

01-25-2004, 12:32 AM	#3 (permalink)
cheerios Banned Location: 'bout 2 feet from my iMac	cheers debugging saves the day again! "did you check the obvious?"

01-25-2004, 12:40 AM	#4 (permalink)
juanvaldes Banned Location: shittown, CA	aka "huh?, what are you doing here?" then I pick up the book I was to lazy to check. and if anyone cares: For some reason I needed to ask for the dictionary with the userInfo: method not object: like with other notifications.