control+v

ddhotkey.m

#pragma mark - Initial keyboard interactions

- (void)globalHotkeyWithEvent:(NSEvent *)event
{
	NSLog(@"Firing -[%@ %@]", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
	NSLog(@"Hotkey event: %@", event);
}

- (void)registerGlobalKeyCommands
{
    DDHotKeyCenter *keyCenter = [[DDHotKeyCenter alloc] init];
    uint16_t keyCode = kVK_ANSI_V;
    [keyCenter registerHotKeyWithKeyCode:keyCode modifierFlags:NSControlKeyMask target:self action:@selector(globalHotkeyWithEvent:) object:nil];
    [keyCenter release];
}