REPARSE_GUID_DATA_BUFFER structure (winnt.h)
Contains information about a reparse point. It is used by the FSCTL_GET_REPARSE_POINT control code.
Syntax
typedef struct _REPARSE_GUID_DATA_BUFFER {
DWORD ReparseTag;
WORD ReparseDataLength;
WORD Reserved;
GUID ReparseGuid;
struct {
BYTE DataBuffer[1];
} GenericReparseBuffer;
} REPARSE_GUID_DATA_BUFFER, *PREPARSE_GUID_DATA_BUFFER;
Members
ReparseTag
The reparse point tag. This member identifies the structure of the user-defined reparse data. For more information, see Reparse Point Tags.
ReparseDataLength
The size of the reparse data in the DataBuffer member, in bytes. This value may vary with different tags and may vary between two uses of the same tag.
Reserved
Reserved; do not use.
ReparseGuid
A GUID that uniquely identifies the reparse point. When setting a reparse point, the application must provide a non-NULL GUID in the ReparseGuid member. When retrieving a reparse point from the file system, ReparseGuid is the GUID assigned when the reparse point was set.
GenericReparseBuffer
GenericReparseBuffer.DataBuffer[1]
The user-defined data for the reparse point. The contents are determined by the reparse point implementer. The tag in the ReparseTag member and the GUID in the ReparseGuid member indicate how the data is to be interpreted.
Remarks
The REPARSE_GUID_DATA_BUFFER structure is used by all third-party layered drivers to store data for a reparse point. Each reparse point contains one instance of a REPARSE_GUID_DATA_BUFFER structure.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Header | winnt.h (include Windows.h) |