KEY_SET_INFORMATION_CLASS - NtDoc

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

typedef enum _KEY_SET_INFORMATION_CLASS
{
    KeyWriteTimeInformation, // KEY_WRITE_TIME_INFORMATION
    KeyWow64FlagsInformation, // KEY_WOW64_FLAGS_INFORMATION
    KeyControlFlagsInformation, // KEY_CONTROL_FLAGS_INFORMATION
    KeySetVirtualizationInformation, // KEY_SET_VIRTUALIZATION_INFORMATION
    KeySetDebugInformation,
    KeySetHandleTagsInformation, // KEY_HANDLE_TAGS_INFORMATION
    KeySetLayerInformation, // KEY_SET_LAYER_INFORMATION
    MaxKeySetInfoClass
} KEY_SET_INFORMATION_CLASS;

#endif

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This enumeration is documented in Windows Driver Kit.