FILE_VALID_DATA_LENGTH_INFORMATION - NtDoc

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

/**
 * The FILE_VALID_DATA_LENGTH_INFORMATION structure is used to set the valid data length information for a file.
 * @sa https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/ntddk/ns-ntddk-_file_valid_data_length_information
 */
typedef struct _FILE_VALID_DATA_LENGTH_INFORMATION
{
    LARGE_INTEGER ValidDataLength;
} FILE_VALID_DATA_LENGTH_INFORMATION, *PFILE_VALID_DATA_LENGTH_INFORMATION;

#endif

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This structure is documented in Windows Driver Kit.