public static extern void XSpeed_RegOnRtnQuoteCancelOrder(IntPtr pMsgQueue, fnOnRtnQuoteCancelOrder pCallback);
public static extern void XSpeed_RegOnRtnQuoteCancelOrder(IntPtr pMsgQueue, fnOnRtnQuoteCancelOrder pCallback);
public static extern void XSpeed_RegOnRtnQuoteCancelOrder(IntPtr pMsgQueue, fnOnRtnQuoteCancelOrder pCallback);
public static extern void XSpeed_RegOnRtnQuoteCancelOrder(IntPtr pMsgQueue, fnOnRtnQuoteCancelOrder pCallback);