CM_EXTENDED_PARAMETER - NtDoc

#ifndef _NTREGAPI_H

// private
typedef struct DECLSPEC_ALIGN(8) _CM_EXTENDED_PARAMETER
{
    struct
    {
        ULONG64 Type : CM_EXTENDED_PARAMETER_TYPE_BITS;
        ULONG64 Reserved : 64 - CM_EXTENDED_PARAMETER_TYPE_BITS;
    };

    union
    {
        ULONG64 ULong64;
        PVOID Pointer;
        SIZE_T Size;
        HANDLE Handle;
        ULONG ULong;
        ACCESS_MASK AccessMask;
    };
} CM_EXTENDED_PARAMETER, *PCM_EXTENDED_PARAMETER;

#endif
View code on GitHub