REG_SAVE_MERGED_KEY_INFORMATION structure (wdm.h)
The REG_SAVE_MERGED_KEY_INFORMATION structure contains the information about the two registry subtrees for which a merged view is to be saved to a file.
Syntax
typedef struct _REG_SAVE_MERGED_KEY_INFORMATION {
PVOID Object;
HANDLE FileHandle;
PVOID HighKeyObject;
PVOID LowKeyObject;
PVOID CallContext;
PVOID ObjectContext;
PVOID Reserved;
} REG_SAVE_MERGED_KEY_INFORMATION, *PREG_SAVE_MERGED_KEY_INFORMATION;
Members
Object
Set to NULL.
FileHandle
Supplies a file handle with write access to the target file.
HighKeyObject
Supplies a pointer to the registry key object that represents the root of the higher precedence tree. When a key is present in both the trees headed by the two keys, the key underneath this tree prevails. The specified node is included in the data written out.
LowKeyObject
Supplies a pointer to the registry key object that represents the root of the "second choice" tree. Keys from this tree are saved when there is no equivalent key in the tree headed by HighKeyObject.
CallContext
Optional driver-defined context information that the driver's RegistryCallback routine can supply. This member is defined for Windows Vista and later versions of the Windows operating system.
ObjectContext
A pointer to driver-defined context information that the driver has associated with a registry object by calling CmSetCallbackObjectContext. This member is defined for Windows Vista and later versions of the Windows operating system.
Reserved
This member is reserved for future use. This member is defined for Windows Vista and later versions of the Windows operating system.
Remarks
For more information about registry filtering operations, see Filtering Registry Calls. These are mostly useful for watching for unexpected updates to critical hives and consumers should avoid attempting to modify the merge operations.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported server | Windows Server 2022 |
| Header | wdm.h (include Wdm.h) |