Device Management Structures
The following structures are used with device management:
In this section
| Topic | Description |
|---|---|
| CHANGER_ELEMENT |
Represents a changer element. |
| CHANGER_ELEMENT_LIST |
Represents a range of elements of a single type, typically for an operation such as getting or initializing the status of multiple elements. |
| CHANGER_ELEMENT_STATUS |
Represents the status of the specified element. |
| CHANGER_ELEMENT_STATUS_EX |
Represents the status of the specified element. |
| CHANGER_EXCHANGE_MEDIUM |
Contains information the IOCTL_CHANGER_EXCHANGE_MEDIUM control code uses to move a piece of media to a destination, and the piece of media originally in the first destination to a second destination. |
| CHANGER_INITIALIZE_ELEMENT_STATUS |
Represents the status of all media changer elements or the specified elements of a particular type. |
| CHANGER_MOVE_MEDIUM |
Contains information that the IOCTL_CHANGER_MOVE_MEDIUM control code uses to move a piece of media to a destination. |
| CHANGER_PRODUCT_DATA |
Represents product data for a changer device. It is used by the IOCTL_CHANGER_GET_PRODUCT_DATA control code. |
| CHANGER_READ_ELEMENT_STATUS |
Contains information that the IOCTL_CHANGER_GET_ELEMENT_STATUS control code needs to determine the elements whose status is to be retrieved. |
| CHANGER_SEND_VOLUME_TAG_INFORMATION |
Contains information that the IOCTL_CHANGER_QUERY_VOLUME_TAGS control code uses to determine the volume information to be retrieved. |
| CHANGER_SET_ACCESS |
Contains information that the IOCTL_CHANGER_SET_ACCESS control code needs to set the state of the device's insert/eject port, door, or keypad. |
| CHANGER_SET_POSITION |
Contains information needed by the IOCTL_CHANGER_SET_POSITION control code to set the changer's robotic transport mechanism to the specified element address. |
| CLASS_MEDIA_CHANGE_CONTEXT |
Contains information associated with a media change event. |
| _DEV_BROADCAST_USERDEFINED |
Contains the user-defined event and optional data associated with the DBT_USERDEFINED device event. |
| DEV_BROADCAST_DEVICEINTERFACE |
Contains information about a class of devices. |
| DEV_BROADCAST_HANDLE |
Contains information about a file system handle. |
| DEV_BROADCAST_HDR |
Serves as a standard header for information related to a device event reported through the WM_DEVICECHANGE message. |
| DEV_BROADCAST_OEM |
Contains information about a OEM-defined device type. |
| DEV_BROADCAST_PORT |
Contains information about a modem, serial, or parallel port. |
| DEV_BROADCAST_VOLUME |
Contains information about a logical volume. |
| DEVICE_DATA_SET_LB_PROVISIONING_STATE |
Output structure for the DeviceDsmAction_Allocation action of the IOCTL_STORAGE_MANAGE_DATA_SET_ATTRIBUTES control code. |
| DEVICE_DATA_SET_RANGE |
Provides data set range information for use with the IOCTL_STORAGE_MANAGE_DATA_SET_ATTRIBUTES control code. |
| DEVICE_DATA_SET_REPAIR_PARAMETERS |
Specifies parameters for the repair operation. |
| DEVICE_DSM_NOTIFICATION_PARAMETERS |
Contains parameters for the DeviceDsmAction_Notification action for the IOCTL_STORAGE_MANAGE_DATA_SET_ATTRIBUTES control code. |
| DEVICE_DSM_OFFLOAD_READ_PARAMETERS |
Contains parameters for the DeviceDsmAction_OffloadRead action for the IOCTL_STORAGE_MANAGE_DATA_SET_ATTRIBUTES control code. |
| DEVICE_DSM_OFFLOAD_WRITE_PARAMETERS |
Specifies parameters for the offload write operation. |
| DEVICE_MANAGE_DATA_SET_ATTRIBUTES |
Input structure for the IOCTL_STORAGE_MANAGE_DATA_SET_ATTRIBUTES control code. |
| DEVICE_MANAGE_DATA_SET_ATTRIBUTES_OUTPUT |
Output structure for the IOCTL_STORAGE_MANAGE_DATA_SET_ATTRIBUTES control code. |
| DEVICE_MEDIA_INFO |
Provides information about the media supported by a device. |
| GET_CHANGER_PARAMETERS |
Represents the parameters of a changer. |
| GET_MEDIA_TYPES |
Contains information about the media types supported by a device. |
| MEDIA_SERIAL_NUMBER_DATA |
Contains the serial number of a USB device. It is used by the IOCTL_STORAGE_GET_MEDIA_SERIAL_NUMBER control code. |
| PREVENT_MEDIA_REMOVAL |
Provides removable media locking data. It is used by the IOCTL_STORAGE_MEDIA_REMOVAL control code. |
| READ_ELEMENT_ADDRESS_INFO |
Represents the volume tag information. It is used by the IOCTL_CHANGER_QUERY_VOLUME_TAGS control code. |
| STORAGE_DEVICE_NUMBER |
Contains information about a device. This structure is used by the IOCTL_STORAGE_GET_DEVICE_NUMBER control code. |
| STORAGE_HOTPLUG_INFO |
Provides information about the hotplug information of a device. |
| STORAGE_OFFLOAD_READ_OUTPUT |
Output structure for the DeviceDsmAction_OffloadRead action of the IOCTL_STORAGE_MANAGE_DATA_SET_ATTRIBUTES control code. |
| STORAGE_OFFLOAD_TOKEN |
The token used to represent a portion of a file used in by offload read and write operations. |
| STORAGE_OFFLOAD_WRITE_OUTPUT |
Output structure for the DeviceDsmAction_OffloadWrite action of the IOCTL_STORAGE_MANAGE_DATA_SET_ATTRIBUTES control code. |
| STORAGE_READ_CAPACITY |
Contains information about the size of a device. This is returned from the IOCTL_STORAGE_READ_CAPACITY control code. |