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GetNtmsObjectInformationA function (ntmsapi.h)

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

The GetNtmsObjectInformation function returns an object's information structure for the specified object.

Syntax

DWORD GetNtmsObjectInformationA(
  [in]  HANDLE                    hSession,
  [in]  LPNTMS_GUID               lpObjectId,
  [out] LPNTMS_OBJECTINFORMATIONA lpInfo
);

Parameters

[in] hSession

Handle to the session returned by the OpenNtmsSession function.

[in] lpObjectId

Unique identifier of the RSM object.

[out] lpInfo

Pointer to an NTMS_OBJECTINFORMATION structure that receives the object information.

Return value

This function returns one of the following values.

Value Meaning
ERROR_ACCESS_DENIED
 NTMS_USE_ACCESS to the object or its container is denied. Other security errors are also possible, but they would indicate a security subsystem error.

Windows XP:  No access rights are required.
ERROR_INVALID_HANDLE
 The session handle is missing or is not valid.
ERROR_INVALID_PARAMETER
 The object ID or information structure is missing, or the object information size or object type is not valid.
ERROR_NOT_ENOUGH_MEMORY
 An allocation failure occurred during processing.
ERROR_OBJECT_NOT_FOUND
 The object ID is not valid.
ERROR_SUCCESS
 The function was successful.

Remarks

The information size and type of the information structure must be set correctly in the lpInfo parameter before you use the GetNtmsObjectInformation function.

To avoid unpredictable results, applications must call the GetNtmsObjectInformation function before calling the SetNtmsObjectInformation function. The SetNtmsObjectInformation function updates all writable members of the NTMS_OBJECTINFORMATION structure, therefore the application is responsible for providing a value for all writable members.

The following is the list of objects that require special access rights.

Object Access
NTMS_CHANGER Requires NTMS_USE_ACCESS to the library.
NTMS_CHANGER_TYPE Requires NTMS_USE_ACCESS to the computer.
NTMS_COMPUTER Requires NTMS_USE_ACCESS to the computer.
NTMS_DRIVE Requires NTMS_USE_ACCESS to the library.
NTMS_DRIVE_TYPE Requires NTMS_USE_ACCESS to the computer.
NTMS_IEDOOR Requires NTMS_USE_ACCESS to the library.
NTMS_IEPORT Requires NTMS_USE_ACCESS to the library.
NTMS_LIBRARY Requires NTMS_USE_ACCESS to the library.
NTMS_LIBREQUEST Requires NTMS_USE_ACCESS to the library.
NTMS_LOGICAL_MEDIA Requires NTMS_USE_ACCESS to the media pool of the logical media.
NTMS_MEDIA_TYPE Requires NTMS_USE_ACCESS to the computer.
NTMS_OPREQUEST Requires NTMS_USE_ACCESS to the computer.
NTMS_PARTITION Requires NTMS_USE_ACCESS to the media pool of the side.
NTMS_PHYSICAL_MEDIA Requires NTMS_USE_ACCESS to the media pool.
NTMS_STORAGESLOT Requires NTMS_USE_ACCESS to the library.
 

Note

The ntmsapi.h header defines GetNtmsObjectInformation 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]
Target Platform Windows
Header ntmsapi.h
Library Ntmsapi.lib
DLL Ntmsapi.dll

See also

GetNtmsObjectSecurity

NTMS_OBJECTINFORMATION

Object Management Functions

SetNtmsObjectInformation