#ifndef _NTREGAPI_H
/**
* The KEY_VALUE_INFORMATION_CLASS enumeration type specifies the type of information to supply about the value of a registry key.
* \sa https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/ne-wdm-_key_value_information_class
*/
typedef enum _KEY_VALUE_INFORMATION_CLASS
{
KeyValueBasicInformation, // KEY_VALUE_BASIC_INFORMATION
KeyValueFullInformation, // KEY_VALUE_FULL_INFORMATION
KeyValuePartialInformation, // KEY_VALUE_PARTIAL_INFORMATION
KeyValueFullInformationAlign64, // KEY_VALUE_FULL_INFORMATION_ALIGN64
KeyValuePartialInformationAlign64, // KEY_VALUE_PARTIAL_INFORMATION_ALIGN64
KeyValueLayerInformation, // KEY_VALUE_LAYER_INFORMATION
MaxKeyValueInfoClass
} KEY_VALUE_INFORMATION_CLASS;
View code on GitHub
// wdm.h
typedef enum _KEY_VALUE_INFORMATION_CLASS {
KeyValueBasicInformation,
KeyValueFullInformation,
KeyValuePartialInformation,
KeyValueFullInformationAlign64,
KeyValuePartialInformationAlign64,
KeyValueLayerInformation,
MaxKeyValueInfoClass
} KEY_VALUE_INFORMATION_CLASS;
View the official Windows Driver Kit DDI reference
This enumeration is documented in Windows Driver Kit.
The KEY_VALUE_INFORMATION_CLASS enumeration type specifies the type of information to supply about the value of a registry key.
KeyValueBasicInformation
The information is stored as a KEY_VALUE_BASIC_INFORMATION structure.
KeyValueFullInformation
The information is stored as a KEY_VALUE_FULL_INFORMATION structure.
KeyValuePartialInformation
The information is stored as a KEY_VALUE_PARTIAL_INFORMATION structure.
KeyValueFullInformationAlign64
The information is stored as a KEY_VALUE_FULL_INFORMATION structure that is aligned to a 64-bit (that is, 8-byte) boundary in memory. If the caller-supplied buffer does not start on a 64-bit boundary, ZwQueryValueKey returns STATUS_DATATYPE_MISALIGNMENT.
KeyValuePartialInformationAlign64
The information is stored as a KEY_VALUE_PARTIAL_INFORMATION_ALIGN64 structure that is aligned to a 64-bit (that is, 8-byte) boundary in memory. If the caller-supplied buffer does not start on a 64-bit boundary, ZwQueryValueKey returns STATUS_DATATYPE_MISALIGNMENT.
KeyValueLayerInformation
MaxKeyValueInfoClass
The maximum value in this enumeration type.
Use the KEY_VALUE_INFORMATION_CLASS values to specify the type of data to be supplied by the ZwEnumerateValueKey and ZwQueryValueKey routines.