IOCTL_CHANGER_EXCHANGE_MEDIUM IOCTL (ntddchgr.h)
Moves a piece of media from a source element to one destination and the piece of media originally in the first destination to a second destination. The source and second destination are often the same, which essentially swaps the two pieces of media.
Major code
Input buffer
The buffer at Irp->AssociatedIrp.SystemBuffer contains the CHANGER_EXCHANGE_MEDIUM data, which indicates the source, both destinations, and whether either or both media should be flipped, assuming the device supports two-sided media.
Input buffer length
Parameters.DeviceIoControl.InputBufferLength in the I/O stack location indicates the size, in bytes, of the parameter buffer, which must be >= sizeof(CHANGER_EXCHANGE_MEDIUM).
Output buffer
None.
Output buffer length
None.
Status block
The Information field is set to zero. The Status field is set to STATUS_SUCCESS, or possibly to STATUS_DESTINATION_ELEMENT_FULL, STATUS_INFO_LENGTH_MISMATCH, STATUS_INSUFFICIENT_RESOURCES, STATUS_INVALID_DEVICE_REQUEST, STATUS_INVALID_ELEMENT_ADDRESS, STATUS_INVALID_PARAMETER, or STATUS_SOURCE_ELEMENT_EMPTY.
Requirements
| Requirement | Value |
|---|---|
| Header | ntddchgr.h (include Ntddchgr.h) |