internal extern static bool AirpcapGetDriverDecryptionState(/* PAirpcapHandle */ IntPtr AdapterHandle,
                                                             /* PAirpcapDecryptionState */ out AirPcapDecryptionState PEnable);
 internal extern static bool AirpcapSetDecryptionState(/* PAirpcapHandle */ IntPtr AdapterHandle,
                                                       /* AirpcapDecryptionState */ AirPcapDecryptionState Enable);