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GetTapeParameters

The GetTapeParameters function retrieves information that describes the tape or the tape drive.

VB4-32,5,6
Declare Function GetTapeParameters Lib "kernel32" Alias "GetTapeParameters" (ByVal hDevice As Long, ByVal dwOperation As Long, lpdwSize As Long, lpTapeInformation As Any) As Long

Operating Systems Supported
Requires Windows NT 3.1 or later; Win9x/ME: Not supported

Library
Kernel32

Parameter Information
hDevice
Identifies the device about which information is sought. This handle is created by using the CreateFile function.

dwOperation
Specifies the type of information requested. This parameter must be one of the following values:
GET_TAPE_MEDIA_INFORMATION
Retrieves information about the tape in the tape device.
GET_TAPE_DRIVE_INFORMATION
Retrieves information about the tape device.

lpdwSize
Points to a variable that receives the size, in bytes, of the buffer specified by the lpTapeInformation parameter. If the buffer is too small, this parameter receives the required size.

lpTapeInformation
Points to a structure that contains the requested information. If the dwOperation parameter is GET_TAPE_MEDIA_INFORMATION, lpTapeInformation points to a TAPE_GET_MEDIA_PARAMETERS structure.
If dwOperation is GET_TAPE_DRIVE_INFORMATION, lpTapeInformation points to a TAPE_GET_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_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.

Examples

Related Functions

 

 


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