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NTMS_PARTITIONINFORMATIONW structure (ntmsapi.h)

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[Removable Storage Manager is no longer available as of Windows 7 and Windows Server 2008 R2.]

The NTMS_PARTITIONINFORMATION structure defines the properties specific to the side object.

Syntax

typedef struct _NTMS_PARTITIONINFORMATIONW {
  NTMS_GUID     PhysicalMedia;
  NTMS_GUID     LogicalMedia;
  DWORD         State;
  WORD          Side;
  DWORD         dwOmidLabelIdLength;
  BYTE          OmidLabelId[NTMS_OMIDLABELID_LENGTH];
  WCHAR         szOmidLabelType[NTMS_OMIDLABELTYPE_LENGTH];
  WCHAR         szOmidLabelInfo[NTMS_OMIDLABELINFO_LENGTH];
  DWORD         dwMountCount;
  DWORD         dwAllocateCount;
  LARGE_INTEGER Capacity;
} NTMS_PARTITIONINFORMATIONW;

Members

PhysicalMedia

Unique physical media identifier for the medium that contains this side.

LogicalMedia

Unique logical media identifier (LMID) for a piece of logical media that contains this side. This parameter is a NULL if the side is not allocated.

State

Side life cycle information. This can be one of the following values.

Value Meaning
NTMS_PARTSTATE_ALLOCATED
 The media has been allocated to an application.
NTMS_PARTSTATE_AVAILABLE
 The media is available to be allocated.
NTMS_PARTSTATE_COMPLETE
 The media has been completely written and marked as complete by an application.
NTMS_PARTSTATE_DECOMMISIONED
 The media is unsuitable for data storage and is no longer usable.
NTMS_PARTSTATE_INCOMPATIBLE
 The media has been found to be and marked as incompatible with the drive.
NTMS_PARTSTATE_FOREIGN
 The media is in a unrecognized pool.
NTMS_PARTSTATE_IMPORT
 The media is in the import pool.
NTMS_PARTSTATE_UNPREPARED
 The media is waiting for a free label to be applied.
NTMS_PARTSTATE_RESERVED
 The side has been reserved by the AllocateNtmsMedia function with the dwOption parameter set to NTMS_ALLOCATE_NEW.

Side

Zero-relative value which indicates which side of a multi-sided media this is. For single-sided media, such as tape, this value is always zero. For dual-sided media one NTMS_PARITIONINFORMATION record has this property set to zero - the "A" side - and a second NTMS_PARTITIONINFORMATION record has it set to 1 - the "B" side.

dwOmidLabelIdLength

Length of the label ID string of the on-media identifier.

OmidLabelId[NTMS_OMIDLABELID_LENGTH]

Label ID unique identifier of the on-media identifier.

szOmidLabelType[NTMS_OMIDLABELTYPE_LENGTH]

Label type of the on-media identifier.

szOmidLabelInfo[NTMS_OMIDLABELINFO_LENGTH]

Label information of the on-media identifier.

dwMountCount

Number of times this media has been mounted into a drive. This is initialized to zero when the objects are created in the database.

dwAllocateCount

Number of times this media has been allocated.

Capacity

Number bytes of storage available on this side.

Remarks

The NTMS_PARTITIONINFORMATION structure is included in the NTMS_OBJECTINFORMATION structure.

Note

The ntmsapi.h header defines NTMS_PARTITIONINFORMATION as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Header ntmsapi.h

See also

NTMS_OBJECTINFORMATION