Logs (using NSLog) an error message that includes the name of the method that failed, the class name of the object, the name of the source file, and the line number.
Original signature is '- (void)handleFailureInMethod:(SEL)selector object:(id)object file:(NSString *)fileName lineNumber:(NSInteger)line description:(NSString *)format,...'
Available in Mac OS X v10.0 and later.

C# | Visual Basic | Visual C++ |
public virtual void HandleFailureInMethodObjectFileLineNumberDescription( IntPtr selector, Id object, NSString fileName, NSInteger line, NSString format, params Object[] values )

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)