FILE_ZERO_DATA_INFORMATION_EX structure (ntifs.h)
Contains a range of a file to set to zeros. This structure is used by the FSCTL_SET_ZERO_DATA control code. It's similar to FILE_ZERO_DATA_INFORMATION, but contains an additional Flags member.
Syntax
typedef struct _FILE_ZERO_DATA_INFORMATION_EX {
LARGE_INTEGER FileOffset;
LARGE_INTEGER BeyondFinalZero;
ULONG Flags;
} FILE_ZERO_DATA_INFORMATION_EX, *PFILE_ZERO_DATA_INFORMATION_EX;
Members
FileOffset
The file offset of the start of the range to set to zeros, in bytes.
BeyondFinalZero
The byte offset of the first byte beyond the last zeroed byte.
Flags
The following flags are supported:
| Flag | Description |
|---|---|
| FILE_ZERO_DATA_INFORMATION_FLAG_PRESERVE_CACHED_DATA | Indicates not to purge the contents of the cache corresponding to this range of the file. Only drivers can set this flag. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10 |
| Minimum supported server | Windows Server 2016 |
| Header | ntifs.h (include Ntifs.h) |