objective c - NSNotificationCenter selector won't work with its NSNotification -

I am working on the Cocoa project in some (I know, objc is in the ...) and am Trying to understand NSNotificationCenter s >

/ P>

  [[NSNotificationCenter defaultCenter] addObserver: auto selector: @selector (selName :) name: @ "notName" object: zero]; I have a callback function:  
  int callback (/ * args * /) {structName * f = ... NSAutoreleasePool * autoreleasepool = [ [NSAutoreleasePool alloc] init]; [[NSNotificationCenter defaultCenter] postNotificationName: @ "Nomenclature" object: [[NSValue valueWithPointer: f] Maintenance]]; [Autoreilpool release]; }  
 
 and then for my selector: 
 
  - (zero) selName: (NSNotification *) note {NSLog (@ "here"); NSLog (@ "Note is %%", note); }  
 
 Now, if I comment on the second  NSLog , then everything seems to work (i.e. "here" is printed). But if I leave it, nothing is working about  NSNotification  but to defeat the object of the  NSNotification  object, user, etc. looks like. 
 
 What am I doing and how can I fix this so that I can reach them my  structName f ? 
 
 @ Nathan is okay, so now I have 
 
  nssxide * dict = [NSDL dictionary with point of view: [NSVLUE with point pointer: f]: @ "FK "]; // F, N and F. There was a typo in my OP that I had decided. [[NSNotificationCenter defaultCenter] postNotificationName: @ "Nomenclature" object: zero user information: [retaining word]];  
 
 ... but the problem remains. 
 
 Edit: 
 
 The problem continues with changing the two lines from the top 
 
  [[NSNotificationCenter defaultCenter] postNotificationName: @ "notName" Object: Null user information: [Object with NSDictionary dictionary: [NSData dataWithBytes: f length: sizeof (structName)] forKey: @ "fkey"]];  
 

What are you doing differently?