public static extern bool WTOverlap(P_HCTX hctx_I, bool toTop_I);
public static extern UInt32 WTQueueSizeGet(P_HCTX hctx_I);
public static extern bool WTClose(P_HCTX hctx_I);
public static extern bool WTEnable(P_HCTX hctx_I, bool enable_I);
public static extern bool WTQueuePacketsEx(P_HCTX hctx_I, ref UInt32 pktIDOldest_O, ref UInt32 pktIDNewest_O);
public static extern UInt32 WTDataPeek(P_HCTX hctx_I, UInt32 pktIDStart_I, UInt32 pktIDEnd_I, UInt32 maxPkts_I, IntPtr pktBuf_O, ref UInt32 numPkts_O);
public static extern UInt32 WTPacketsGet(P_HCTX hctx_I, UInt32 maxPkts_I, IntPtr pktBuf_O);
public static extern bool WTPacket(P_HCTX hctx_I, UInt32 pktSerialNum_I, IntPtr pktBuf_O);
public static extern bool WTQueueSizeSet(P_HCTX hctx_I, UInt32 nPkts_I);
public static extern bool WTExtSet(P_HCTX hctx_I, UInt32 extTag_I, IntPtr extData_I);
public static extern bool WTPacket(P_HCTX hctx_I, UInt32 pktSerialNum_I, ref WintabPacket pktBuf_O);