Informs the delegate that the window has become main.
Original signature is '- (void)windowDidBecomeMain:(NSNotification *)notification'
Available in Mac OS X v10.0 and later.

C# | Visual Basic | Visual C++ |
public event NSWindow..::..WindowDidBecomeMainEventHandler WindowDidBecomeMain
Public Event WindowDidBecomeMain As NSWindow..::..WindowDidBecomeMainEventHandler
public: event NSWindow..::..WindowDidBecomeMainEventHandler^ WindowDidBecomeMain { void add (NSWindow..::..WindowDidBecomeMainEventHandler^ value); void remove (NSWindow..::..WindowDidBecomeMainEventHandler^ value); }

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