KEY_WRITE_TIME_INFORMATION - NtDoc

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

/**
 * Structure representing the last write time of a registry key.
 * 
 * The values include:
 * - LastWriteTime: Contains the timestamp of the last write operation performed on a registry key.
 */
typedef struct _KEY_WRITE_TIME_INFORMATION
{
    LARGE_INTEGER LastWriteTime;
} KEY_WRITE_TIME_INFORMATION, *PKEY_WRITE_TIME_INFORMATION;

#endif

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This structure is documented in Windows Driver Kit.