SetTapeParameters

The SetTapeParameters function either specifies the block size of a tape or configures the tape device.

DWORD SetTapeParameters(

HANDLE hDevice,	// handle of open device
DWORD dwOperation,	// type of information to set
LPVOID lpTapeInformation	// address of buffer with information to set
);

Parameters

hDevice

Identifies the device for which to set configuration information. This handle is created by using the CreateFile function.

dwOperation

Specifies the type of information to set. This parameter must be one of the following values:

Value	Description
SET_TAPE_MEDIA_INFORMATION	Sets the tape-specific information specified by the lpTapeInformation parameter.
GET_TAPE_DRIVE_INFORMATION	Sets the device-specific information specified by lpTapeInformation.

lpTapeInformation

Points to a structure that contains the information to set. If the dwOperation parameter is SET_TAPE_MEDIA_INFORMATION, lpTapeInformation points to a TAPE_SET_MEDIA_PARAMETERS structure.

If dwOperation is SET_TAPE_DRIVE_INFORMATION, lpTapeInformation points to a TAPE_SET_DRIVE_PARAMETERS structure.

Return Values

If the function succeeds, the return value is NO_ERROR.

If the function fails, the return value is one of the following error codes:

Error	Description
ERROR_BEGINNING_OF_MEDIA	An attempt to access data before the beginning-of-medium marker failed.
ERROR_BUS_RESET	A reset condition was detected on the bus.
ERROR_END_OF_MEDIA	The end-of-tape marker was reached during an operation.
ERROR_FILEMARK_DETECTED	A filemark was reached during an operation.
ERROR_SETMARK_DETECTED	A setmark was reached during an operation.
ERROR_NO_DATA_DETECTED	The end-of-data marker was reached during an operation.
ERROR_PARTITION_FAILURE	The tape could not be partitioned.
ERROR_INVALID_BLOCK_LENGTH	The block size is incorrect on a new tape in a multivolume partition.
ERROR_DEVICE_NOT_PARTITIONED	The partition information could not be found when a tape was being loaded.
ERROR_MEDIA_CHANGED	The tape that was in the drive has been replaced or removed.
ERROR_NO_MEDIA_IN_DRIVE	There is no media in the drive.
ERROR_NOT_SUPPORTED	The tape driver does not support a requested function.
ERROR_UNABLE_TO_LOCK_MEDIA	An attempt to lock the ejection mechanism failed.
ERROR_UNABLE_TO_UNLOAD_MEDIA	An attempt to unload the tape failed.
ERROR_WRITE_PROTECT	The media is write protected.

See Also

GetTapeParameters, TAPE_SET_DRIVE_PARAMETERS, TAPE_SET_MEDIA_PARAMETERS

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