object_information_class.md

Defines common types of information that can be queried or set for kernel handles/objects. This enumeration is partially documented in Windows Driver Kit.

Applicable to

• NtQueryObject
• NtSetInformationObject

Members

ObjectBasicInformation (0)

Retrieves basic information about the handle and the underlying object, such as the granted access mask and handle count.

	Query	Set
Type	OBJECT_BASIC_INFORMATION	N/A
Required access	None	N/A
Optional access	READ_CONTROL	N/A

ObjectNameInformation (1)

Retrieves the name of the object in its native form.

	Query	Set
Type	OBJECT_NAME_INFORMATION	N/A
Required access	None	N/A

ObjectTypeInformation (2)

Retrieves information about the type of the object referenced via the handle.

	Query	Set
Type	OBJECT_TYPE_INFORMATION	N/A
Required access	None	N/A

ObjectTypesInformation (3)

Retrieves information about all types of kernel objects registered on the system. This information class does not require a handle on input.

	Query	Set
Type	OBJECT_TYPES_INFORMATION	N/A
Required access	N/A	N/A

ObjectHandleFlagInformation (4)

Controls handle inheritance and protection attributes.

	Query	Set
Type	OBJECT_HANDLE_FLAG_INFORMATION	OBJECT_HANDLE_FLAG_INFORMATION
Required access	None	None

Related Win32 API

• GetHandleInformation
• SetHandleInformation

See also

• OBJ_INHERIT
• OBJ_PROTECT_CLOSE

ObjectSessionInformation (5)

ObjectSessionObjectInformation (6)