IO_CONTAINER_INFORMATION_CLASS enumeration (wdm.h)

The IO_CONTAINER_INFORMATION_CLASS enumeration contains constants that indicate the classes of system information that a kernel-mode driver can request.

Syntax

typedef enum _IO_CONTAINER_INFORMATION_CLASS {
  IoSessionStateInformation,
  IoMaxContainerInformationClass
} IO_CONTAINER_INFORMATION_CLASS;

Constants

IoSessionStateInformation Session state information. A driver uses this enumeration constant to request information about a user session.
IoMaxContainerInformationClass Specifies the maximum value in this enumeration type.

Remarks

To request system information, a driver calls the IoGetContainerInformation routine and sets this routine's InformationClass parameter to an IO_CONTAINER_NOTIFICATION_CLASS constant (other than IoMaxContainerInformationClass). Currently, IoGetContainerInformation supports only InformationClass = IoSessionStateInformation.

Requirements

Requirement	Value
Minimum supported client	Supported in Windows 7 and later versions of the Windows operating system.
Header	wdm.h (include Wdm.h, Ntddk.h, Ntifs.h, Fltkernel.h)

See also

IoGetContainerInformation