// wdm.h

typedef enum _IO_CONTAINER_INFORMATION_CLASS {
  IoSessionStateInformation,
  IoMaxContainerInformationClass
} IO_CONTAINER_INFORMATION_CLASS;
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Windows Driver Kit DDI reference (ne-wdm-_io_container_information_class)

_IO_CONTAINER_INFORMATION_CLASS enumeration

Description

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

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.

IO_CONTAINER_INFORMATION_CLASS - NtDoc