FILE_POSITION_INFORMATION - NtDoc

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

/**
 * The FILE_POSITION_INFORMATION structure is used as an argument to routines that query or set file information.
 * \sa https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/ns-wdm-_file_position_information
 */
typedef struct _FILE_POSITION_INFORMATION
{
    LARGE_INTEGER CurrentByteOffset;
} FILE_POSITION_INFORMATION, *PFILE_POSITION_INFORMATION;

#endif

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This structure is documented in Windows Driver Kit.