// ntddtape.h

// CTL_CODE(0x001f, 0x003, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_TAPE_GET_POSITION 0x001F400C
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Windows Driver Kit DDI reference (ni-ntddtape-ioctl_tape_get_position)

IOCTL_TAPE_GET_POSITION IOCTL

Description

Returns the current absolute, logical, or pseudological partition and offset position on the tape.

Parameters

Major code

Input buffer

None.

Input buffer length

None.

Output buffer

The driver returns the TAPE_GET_POSITION data in the buffer at Irp->AssociatedIrp.SystemBuffer.

Output buffer length

Parameters.DeviceIoControl.OutputBufferLength in the I/O stack location indicates the size, in bytes, of the parameter buffer, which must be >= sizeof(TAPE_GET_POSITION).

Input/output buffer

Input/output buffer length

Status block

The Information field is set to the number of bytes returned. The Status field is set to STATUS_SUCCESS, or possibly to STATUS_INFO_LENGTH_MISMATCH, STATUS_IO_DEVICE_ERROR, STATUS_DEVICE_DATA_ERROR, STATUS_NO_SUCH_DEVICE, STATUS_IO_TIMEOUT, STATUS_DEVICE_NOT_READY, STATUS_NO_MEDIA_IN_DEVICE, or STATUS_VERIFY_REQUIRED.

IOCTL_TAPE_GET_POSITION - NtDoc