ccTouchBegan怎么调用 win32

bool HelloWorld::ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent)
{
CCPoint touchLocation = pTouch->getLocationInView();
//smallball->objectAtIndex(it);
if (smallball->boundingBox().containsPoint(touchLocation))
{
CCMoveBy *moveUp = CCMoveBy::create(0.2f,ccp(0,30));
CCAction *easeMoveDown = moveUp->reverse();
smallball->runAction(CCSequence::create(moveUp,easeMoveDown,NULL));
}

return TRUE;

}

我在init里设置了:setTouchEnabled( true );
可是点击屏幕还是没有效果?
求问原因