ACTCTX_COMPATIBILITY_ELEMENT_TYPE - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers
#ifndef _NTSXS_H
#if (PHNT_MODE == PHNT_MODE_KERNEL)

typedef enum _ACTCTX_COMPATIBILITY_ELEMENT_TYPE
{
    ACTCTX_COMPATIBILITY_ELEMENT_TYPE_UNKNOWN = 0,
    ACTCTX_COMPATIBILITY_ELEMENT_TYPE_OS,
    ACTCTX_COMPATIBILITY_ELEMENT_TYPE_MITIGATION,
    ACTCTX_COMPATIBILITY_ELEMENT_TYPE_MAXVERSIONTESTED
} ACTCTX_COMPATIBILITY_ELEMENT_TYPE;

#endif
#endif

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This enumeration is documented in Windows SDK.