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REG_SAVE_KEY_INFORMATION structure (wdm.h)

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The REG_SAVE_KEY_INFORMATION structure contains the information for a registry key that is about to be saved.

Syntax

typedef struct _REG_SAVE_KEY_INFORMATION {
  PVOID  Object;
  HANDLE FileHandle;
  ULONG  Format;
  PVOID  CallContext;
  PVOID  ObjectContext;
  PVOID  Reserved;
} REG_SAVE_KEY_INFORMATION, *PREG_SAVE_KEY_INFORMATION;

Members

Object

A pointer to a registry key object for the key whose information is about to be saved.

FileHandle

A handle to the file to which the hive information will be saved.

Format

The format in which the key or hive is saved. This member can have one of the following values.

Value Meaning
REG_STANDARD_FORMAT Save in standard format. The standard format is the only format supported by Windows 2000.
REG_LATEST_FORMAT Save in the latest format. The latest format is supported starting with Windows XP. After the key is saved in this format, it cannot be loaded on an earlier version of Windows.
REG_NO_COMPRESSION Save with no compression, for faster save operations. The registry key object must represent the root of a hive.

CallContext

Optional driver-defined context information that the driver's RegistryCallback routine can supply. This member is defined starting with Windows Vista.

ObjectContext

A pointer to driver-defined context information, which the driver has associated with a registry object by calling CmSetCallbackObjectContext. This member is defined starting with Windows Vista.

Reserved

This member is reserved for future use. This member is defined starting with Windows Vista.

Remarks

For more information about registry filtering operations, see Filtering Registry Calls.

Requirements

Requirement Value
Minimum supported client Available starting with Windows Vista SP2.
Header wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)

See also

CmSetCallbackObjectContext

RegistryCallback