PROTOCOLCOUNTERS - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers
#ifndef _WINSTA_H

typedef struct _PROTOCOLCOUNTERS
{
    ULONG WdBytes;
    ULONG WdFrames;
    ULONG WaitForOutBuf;
    ULONG Frames;
    ULONG Bytes;
    ULONG CompressedBytes;
    ULONG CompressFlushes;
    ULONG Errors;
    ULONG Timeouts;
    ULONG AsyncFramingError;
    ULONG AsyncOverrunError;
    ULONG AsyncOverflowError;
    ULONG AsyncParityError;
    ULONG TdErrors;
    USHORT ProtocolType;
    USHORT Length;
    union
    {
        TSHARE_COUNTERS TShareCounters;
        ULONG Reserved[100];
    } Specific;
} PROTOCOLCOUNTERS, *PPROTOCOLCOUNTERS;

#endif

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This type is documented in the [MS-TSTS] specification.