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Problems with NSApplication Delegates

I have a document based application and I need to use
aaplicationWillTerminate: to clean up some temporary files.  My application
has a class called AccosApplication which is a subclass of NSApplication.

@interface AccosApplication : NSApplication
{
    IBOutlet id aboutPanel;
}

In the init method of that class I declare the class itself as the delegate:

@implementation AccosApplication

- (id) init
{
    [super init];
    [self setDelegate: self];
    NSLog(@"Application is initializing");
    NSLog(@"Delegate set to %@",[[self delegate] description]);
    return self;
}

This gets executed an according the log correctly sets itself as the
delegate.  I then implement applicationShouldTerminate and
applicationWillTerminate as follows:

- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication
*)sender
{
    return YES;
}

- (void)applicationWillTerminate:(NSNotification *)aNotification
{
    NSLog(@"Application is terminating");
}


When I quit the application using the QUIT menu as defined in the default
app these two methods are never called.  I also tried [super
setDelegate:self] with the same results.  I am sure I am making an obvious
mistake but it is just not obvious enough for me to see.

Thanks.

Bruce
-- 

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