FILE_EA_INFORMATION - NtDoc

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

/**
 * The FILE_EA_INFORMATION structure is used to query for the size of the extended attributes (EA) for a file.
 * \sa https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/ntifs/ns-ntifs-_file_ea_information
 */
typedef struct _FILE_EA_INFORMATION
{
    ULONG EaSize;
} FILE_EA_INFORMATION, *PFILE_EA_INFORMATION;

#endif

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This structure is documented in Windows Driver Kit.