[Closed] Sample Animation Track

I want to export the Skeleton Animation with IGame. code like this:

IGameControl* pCtrl = pNode->GetIGameControl();
if(NULL != pCtrl)
{
IGameKeyTab rotKeys;
if(pCtrl->GetQuickSampledKeys(rotKeys, IGAME_ROT))
{
…
…
…
}
}

But it will crash when the skeleton is Biped. Whether the biped can’t be quick sampled?