NTMS_LIBREQUESTINFORMATIONW structure (ntmsapi.h)

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

The NTMS_LIBREQUESTINFORMATION structure defines the properties specific to a work request, which are queued to RSM.

Syntax

typedef struct _NTMS_LIBREQUESTINFORMATIONW {
  DWORD      OperationCode;
  DWORD      OperationOption;
  DWORD      State;
  NTMS_GUID  PartitionId;
  NTMS_GUID  DriveId;
  NTMS_GUID  PhysMediaId;
  NTMS_GUID  Library;
  NTMS_GUID  SlotId;
  SYSTEMTIME TimeQueued;
  SYSTEMTIME TimeCompleted;
  WCHAR      szApplication[NTMS_APPLICATIONNAME_LENGTH];
  WCHAR      szUser[NTMS_USERNAME_LENGTH];
  WCHAR      szComputer[NTMS_COMPUTERNAME_LENGTH];
  DWORD      dwErrorCode;
  NTMS_GUID  WorkItemId;
  DWORD      dwPriority;
} NTMS_LIBREQUESTINFORMATIONW;

Members

OperationCode

Item operation. This can be one of the following values.

Value	Meaning
NTMS_LM_CLASSIFY	Classify the medium.
NTMS_LM_CLEANDRIVE	Clean a drive.
NTMS_LM_DISABLELIBRARY	Disable the changer.
NTMS_LM_DISABLEDRIVE	Disable a drive.
NTMS_LM_DISABLEMEDIA	Disable the medium.
NTMS_LM_DISMOUNT	Dismount the medium from a drive.
NTMS_LM_DOORACCESS	Allow access to media through a library unit door.
NTMS_LM_EJECT	Eject the medium from the library.
NTMS_LM_EJECTCLEANER	Eject a cleaner.
NTMS_LM_ENABLELIBRARY	Enable the changer.
NTMS_LM_ENABLEDRIVE	Enable a drive.
NTMS_LM_ENABLEMEDIA	Enable the medium.
NTMS_LM_INJECT	Insert the medium into the library.
NTMS_LM_INJECTCLEANER	Insert a cleaner.
NTMS_LM_INVENTORY	Perform an inventory of the library.
NTMS_LM_MOUNT	Mount a side to a drive.
NTMS_LM_PROCESSOMID	Process the OMID.
NTMS_LM_RELEASECLEANER	Release a cleaner slot.
NTMS_LM_REMOVE	Remove a work item from the queue.
NTMS_LM_RESERVECLEANER	Reserve a cleaner slot.
NTMS_LM_UPDATEOMID	Update the OMID.
NTMS_LM_WRITESCRATCH	Write a free label.

OperationOption

Work item options (command specific).

State

Current state of this work item. This can be one of the following values.

Value	Meaning
NTMS_LM_QUEUED	Operation is queued.
NTMS_LM_INPROCESS	Operation is being processed.
NTMS_LM_PASSED	Operation completed successfully.
NTMS_LM_FAILED	Operation has completed with an error.
NTMS_LM_WAITING	Operation is blocked.
NTMS_LM_CANCELLED	Operation has been canceled.
NTMS_LM_INVALID	Operation is not valid.

PartitionId

Unique identifier of a side being serviced.

DriveId

Unique identifier of a drive being serviced.

PhysMediaId

Unique identifier of a piece of physical media being serviced.

Library

Library for this request.

SlotId

Unique identifier of a slot of the piece of physical media being serviced.

TimeQueued

System time that this request was queued to RSM.

TimeCompleted

System time that this request was completed by RSM.

szApplication[NTMS_APPLICATIONNAME_LENGTH]

Application that submitted the operator request.

szUser[NTMS_USERNAME_LENGTH]

Interactive user logged on to the computer that submitted the operator request.

szComputer[NTMS_COMPUTERNAME_LENGTH]

Computer that submitted the operator request.

dwErrorCode

Error return for requests that return with state NTMS_LM_FAILED. This is a system error code.

WorkItemId

Associated work item ID for this request. This is currently used to contain the work item ID to be canceled on an NTMS_LM_REMOVE request.

dwPriority

Priority of the work item.

Remarks

The NTMS_LIBREQUESTINFORMATION structure is included in the NTMS_OBJECTINFORMATION structure.

GUID in the work times may become not valid over time. For example, an eject of a free medium deletes the PMID after the media is ejected. However the work item is not updated upon completion of the eject.

Note

The ntmsapi.h header defines NTMS_LIBREQUESTINFORMATION as an alias that 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 is 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