Added numlock support

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402006

src/video/cocoa/SDL_cocoakeyboard.h

@@ -25,6 +25,7 @@
 #define _SDL_cocoakeyboard_h
 
 extern void Cocoa_InitKeyboard(_THIS);
+extern void Cocoa_HandleKeyEvent(_THIS, NSEvent *event);
 extern void Cocoa_QuitKeyboard(_THIS);
 
 #endif /* _SDL_cocoakeyboard_h */

src/video/cocoa/SDL_cocoakeyboard.m

@@ -423,6 +423,14 @@ HandleCapsLock(int keyboard, unsigned short scancode,
         SDL_SendKeyboardKey(keyboard, SDL_PRESSED, (Uint8)scancode, SDLK_CAPSLOCK);
         SDL_SendKeyboardKey(keyboard, SDL_RELEASED, (Uint8)scancode, SDLK_CAPSLOCK);
     }
+
+    oldMask = oldMods & NSNumericPadKeyMask;
+    newMask = newMods & NSNumericPadKeyMask;
+
+    if (oldMask != newMask) {
+        SDL_SendKeyboardKey(keyboard, SDL_PRESSED, (Uint8)scancode, SDLK_NUMLOCK);
+        SDL_SendKeyboardKey(keyboard, SDL_RELEASED, (Uint8)scancode, SDLK_NUMLOCK);
+    }
 }
 
 /* This function will handle the modifier keys and also determine the