REG_SET_VALUE_KEY_INFORMATION structure (wdm.h)
The REG_SET_VALUE_KEY_INFORMATION structure describes a new setting for a registry key's value entry.
Syntax
typedef struct _REG_SET_VALUE_KEY_INFORMATION {
PVOID Object;
PUNICODE_STRING ValueName;
ULONG TitleIndex;
ULONG Type;
PVOID Data;
ULONG DataSize;
PVOID CallContext;
PVOID ObjectContext;
PVOID Reserved;
} REG_SET_VALUE_KEY_INFORMATION, *PREG_SET_VALUE_KEY_INFORMATION;
Members
Object
A pointer to the registry key object for the key whose value entry is about to be changed.
ValueName
A pointer to a UNICODE_STRING structure that contains the name of the value entry about to be changed.
TitleIndex
Reserved for system use. Drivers should ignore this member.
Type
The type of data that is about to be written. For more information about the possible values for this member, see the Type parameter of ZwSetValueKey.
Data
A pointer to a buffer that contains the data about to be written. The format of the buffer depends on the value of Type. For more information, see ZwSetValueKey.
DataSize
The size, in bytes, of the Data buffer.
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
The system passes this structure to a RegistryCallback routine every time a thread attempts to set a value entry for a key—for example, when a user-mode thread calls RegSetValue or RegSetValueEx or when a driver calls ZwSetValueKey.
For more information about registry filtering operations, see Filtering Registry Calls.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available on Microsoft Windows XP and later versions of the Windows operating system. |
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h) |