AccessNtmsLibraryDoor Function

Artikel
06/09/2011

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

The AccessNtmsLibraryDoor function unlocks the door of the specified library. If the library is busy, RSM queues the request and returns successfully.

Syntax

DWORD AccessNtmsLibraryDoor(
  __in  HANDLE hSession,
  __in  LPNTMS_GUID lpLibraryId,
  __in  DWORD dwAction
);

Parameters

hSession [in]
Handle to the session returned by the OpenNtmsSession function.
lpLibraryId [in]
Unique identifier of the library object. This library must support door access.

dwAction [in]
Action to perform. This parameter can be one of the following values.

Value	Meaning
NTMS_INVENTORY_NONE	After the user closes the door, no inventory is performed. However, if a mount-label check fails, an inventory will be performed.
NTMS_INVENTORY_OMID	After the user closes the door, a full on-media inventory is performed. This can be time consuming because each side of each medium must be mounted.
NTMS_INVENTORY_FAST	If the library has a bar-code reader installed, this flag causes bar-code inventory to be performed. If the library does not have a bar-code reader, this flag causes a differential inventory to be performed. The OMIDs are checked on each medium placed in an empty slot while the door is open.
NTMS_INVENTORY_DEFAULT	Use the InventoryMethod specified in the library object (see NTMS_LIBRARYINFORMATION).

Return Value

This function returns one of the following values.

Value	Meaning
ERROR_ACCESS_DENIED	NTMS_CONTROL_ACCESS to the library is denied. Other security errors are also possible, but they would indicate a security subsystem error.
ERROR_DATABASE_FAILURE	The database is inaccessible or damaged.
ERROR_DATABASE_FULL	The database is full.
ERROR_INVALID_HANDLE	The session ID is missing or is not valid.
ERROR_INVALID_PARAMETER	The library ID is missing.
ERROR_LIBRARY_OFFLINE	The library ID references an offline library without a door.
ERROR_NOT_ENOUGH_MEMORY	An allocation failure occurred during processing.
ERROR_RESOURCE_DISABLED	The library is disabled.
ERROR_RESOURCE_NOT_PRESENT	The library does not have a door.
ERROR_SUCCESS	Door access is queued.

Remarks

Some libraries provide no means for RSM to programmatically lock and unlock their doors. The behavior of this function with these libraries is identical to its behavior with libraries that RSM can unlock and lock.

Requirements

Minimum supported client	Windows 2000 Professional
Minimum supported server	Windows 2000 Server
End of client support	Windows Vista
End of server support	Windows Server 2008
Header	Ntmsapi.h
Library	Ntmsapi.lib
DLL	Ntmsapi.dll

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