CHANGER_ELEMENT - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// ntddchgr.h
typedef struct _CHANGER_ELEMENT {
ELEMENT_TYPE ElementType;
ULONG ElementAddress;
} CHANGER_ELEMENT, *PCHANGER_ELEMENT;
View the official Windows Driver Kit DDI reference// winioctl.h
typedef struct _CHANGER_ELEMENT {
ELEMENT_TYPE ElementType;
DWORD ElementAddress;
} CHANGER_ELEMENT, *PCHANGER_ELEMENT;
View the official Win32 API referenceNo description available.
The CHANGER_ELEMENT structure contains a description of a changer element.
ElementTypeIndicates the type of element. Can be one of the following values taken from the ELEMENT_TYPE enumeration.
All elements of a changer, including its robotic transport, drives, slots, and IEport. AllElements is valid only in a ChangerGetElementStatus or ChangerInitializeElementStatus call.
The changer's robotic transport element, which is used to move media between IEports, slots, and drives.
A storage element, which is a slot in the changer in which media is stored when not mounted in a drive.
An import/export element (IEport), which is a single or multiple-cartridge access port in some changers. An element is an IEport only if it is possible to move a piece of media from a slot to the IEport.
A data transfer element where data can be read from and written to media.
A mechanism that provides access to all media in a changer at one time (as compared to an IEport that provides access to one or more, but not all, media). For example, a large front door or a magazine that contains all media in the changer are elements of this type. ChangerDoor is valid only in a ChangerSetAccess call.
The keypad or other input control on the front panel of a changer. ChangerKeypad is valid only in a ChangerSetAccess call.
ElementAddressIndicates the element's zero-based address used by the system. A changer miniclass driver is responsible for translating this address to the device-specific address used by the changer.
CHANGER_ELEMENT is used by both the changer class driver and a changer miniclass driver to describe a changer element.
On input, a changer miniclass driver must translate the zero-based address in ElementAddress to a device-specific address before accessing the element. On output, the driver must translate a device-specific address to the zero-based equivalent before filling in ElementAddress.
Represents a changer element.
ElementTypeThe element type. This parameter can be one of the values from the ELEMENT_TYPE enumeration type.
ElementAddressThe zero-based address of the element.
IOCTL_CHANGER_REINITIALIZE_TRANSPORT