DEVICE_INTERFACE_CHANGE_NOTIFICATION structure (wdm.h)
The DEVICE_INTERFACE_CHANGE_NOTIFICATION structure describes a device interface that has been enabled (arrived) or disabled (removed). The PnP manager sends this structure to a driver that registered a callback routine for notification of EventCategoryDeviceInterfaceChange events.
Syntax
typedef struct _DEVICE_INTERFACE_CHANGE_NOTIFICATION {
USHORT Version;
USHORT Size;
GUID Event;
GUID InterfaceClassGuid;
PUNICODE_STRING SymbolicLinkName;
} DEVICE_INTERFACE_CHANGE_NOTIFICATION, *PDEVICE_INTERFACE_CHANGE_NOTIFICATION;
Members
Version
Specifies the version of the data structure, currently 1.
Size
Specifies the size of the structure, in bytes, including the size of the standard first three members plus the event-specific data.
Event
Specifies a GUID identifying the event: GUID_DEVICE_INTERFACE_ARRIVAL or GUID_DEVICE_INTERFACE_REMOVAL. The GUIDs are defined in Wdmguid.h.
InterfaceClassGuid
Specifies the class of the device interface that has just been enabled or disabled.
SymbolicLinkName
Pointer to a Unicode string that contains the name of the symbolic link for the device interface.
Remarks
This structure is allocated from paged memory.
Requirements
| Requirement | Value |
|---|---|
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h) |