Backspace、Function keyなどのイベントを送信

gistfile1.m

const unichar ch = NSBackspaceCharacter;
NSString *backspace = [NSString stringWithCharacters:&ch length:1];

NSEvent *e = [NSEvent keyEventWithType:NSKeyDown
                              location:NSMakePoint(0, 0)
                         modifierFlags:0
                             timestamp:0
                          windowNumber:0
                               context:[NSGraphicsContext currentContext]
                            characters:backspace
           charactersIgnoringModifiers:backspace
                             isARepeat:NO
                               keyCode:0];