The GetTapePosition function retrieves the current address of the tape, in logical or absolute blocks.
DWORD GetTapePosition( HANDLE hDevice, DWORD dwPositionType, LPDWORD lpdwPartition, LPDWORD lpdwOffsetLow, LPDWORD lpdwOffsetHigh );
Handle to the device on which to get the tape position. This handle is created by using CreateFile.
Type of address to obtain. This parameter can be one of the following values.
Pointer to a variable that receives the number of the current tape partition. Partitions are numbered logically from 1 through n, where 1 is the first partition on the tape and n is the last. When a device-specific block address is retrieved, or if the device supports only one partition, this parameter receives zero.
Pointer to a variable that receives the low-order bits of the current tape position.
Pointer to a variable that receives the high-order bits of the current tape position. This parameter can be NULL if the high-order bits are not required.
If the function succeeds, the return value is NO_ERROR.
If the function fails, it can return one of the following error codes.
||An attempt to access data before the beginning-of-medium marker failed.|
||A reset condition was detected on the bus.|
||The partition information could not be found when a tape was being loaded.|
||The end-of-tape marker was reached during an operation.|
||A filemark was reached during an operation.|
||The block size is incorrect on a new tape in a multivolume partition.|
||The tape that was in the drive has been replaced or removed.|
||The end-of-data marker was reached during an operation.|
||There is no media in the drive.|
||The tape driver does not support a requested function.|
||The tape could not be partitioned.|
||A setmark was reached during an operation.|
||An attempt to lock the ejection mechanism failed.|
||An attempt to unload the tape failed.|
||The media is write protected.|
A logical block address is relative to a partition. The first logical block address on each partition is zero.
Call the GetTapeParametersfunction to obtain information about the status, capabilities, and capacities of tape drives and media.
|Minimum supported client||Windows XP [desktop apps only]|
|Minimum supported server||Windows Server 2003 [desktop apps only]|
|Header||winbase.h (include Windows.h)|