public static extern void *IritPQDelete(IritPriorQue **PQ, void *NewItem);
public static extern void *IritPQFirst(IritPriorQue **PQ, int Delete);
public static extern void *IritPQInsert(IritPriorQue **PQ, void *NewItem);
public static extern void IritPQInit(IritPriorQue **PQ);