GetNtmsUIOptions Function

项目
06/09/2011

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

The GetNtmsUIOptions function obtains the list of computer names to which the specified type of user interface is being directed for the given object. A call to GetNtmsUIOptions returns the list of destinations for the instance determined by the lpObjectId and dwType parameters.

If there are no destinations in the list for the specified instance, the function returns ERROR_SUCCESS along with a list length of zero.

Syntax

DWORD GetNtmsUIOptions(
  __in     HANDLE hSession,
  __in     const LPNTMS_GUID lpObjectId,
  __in     DWORD dwType,
  __out    LPTSTR lpszDestination,
  __inout  LPDWORD lpdwSize
);

Parameters

hSession [in]
Handle to the session returned by the OpenNtmsSession function.
lpObjectId [in]
Unique identifier of the object whose UI is being redirected. The object must be a container that can be a source for events. The object can be either be an application (a mount request triggered by the application), a library (a door open request in response to an eject) or a computer (all UI pertaining to the computer).

To specify the computer container set the lpObjectId pointer to point to a buffer with the Removable Storage Manager's computer object GUID. To specify a particular library set it to point to a buffer with the library's GUID. To specify an application, pass in a NULL pointer. The identity of the application is determined by the session used in hSession. Note that an application can have multiple sessions open simultaneously. In this case, the value set applies only to the hSession session.

dwType [in]
This parameter can have one of the following values.

Value	Meaning
NTMS_UITYPE_INFO	UI messages that provide information. These include the work queue items that indicate progress. For example, mount requests.
NTMS_UITYPE_REQ	UI messages that are requests. These include the operator requests that handle media. For example, a request to inject new media.
NTMS_UITYPE_ERR	UI messages that give error information. These include operator requests that are related to error notification. For example, a request to clean the drive.

lpszDestination [out]
Multi-string that returns the names of the machines to which the UI is being redirected. This parameter cannot be NULL.
lpdwSize [in, out]
Size of the destination string, in TCHARs.

Return Value

This function returns one of the following values.

Value	Meaning
ERROR_ACCESS_DENIED	Access to one or more RSM objects is denied.
ERROR_INSUFFICIENT_BUFFER	The buffer size specified by lpdwSize is too small for the destinations found. The function returns the actual size in lpdwSize.
ERROR_INVALID_HANDLE	The session handle is missing or is not valid.
ERROR_INVALID_PARAMETER	The lpdwSize or lpszDestination parameter is NULL, or lpObjectId is not a valid container, or dwType is not one of the three valid values.
ERROR_NOT_ENOUGH_MEMORY	An allocation failure occurred during processing.
ERROR_OBJECT_NOT_FOUND	The GUID specified by lpObjectId is not the GUID of any computer or library object in the database.
ERROR_SUCCESS	The function was successful.

Remarks

A call to GetNtmsUIOptions returns a list of destinations for a particular instance determined by the lpObjectId and dwType parameters.

	NTMS_UITYPE_INFO	NTMS_UITYPE_REQ	NTMS_UITYPE_ERR
Application	Display work item progress UI for work items generated by this application.	Display operator request UI for operator requests generated by actions taken by this application.	Undefined. Applications cannot cause this sort of error event.
Library	Display work item progress UI for work items associated with this library.	Display UI for requests associated with this library.	Display UI for errors associated with this library.
Computer	Display informational UI in this instance of RSM running on this machine.	Display a request-type UI in this instance of RSM.	Display error-type UI in this instance of RSM.

Requirements

Minimum supported client	Windows XP
Minimum supported server	Windows Server 2003
End of client support	Windows Vista
End of server support	Windows Server 2008
Header	Ntmsapi.h
Library	Ntmsapi.lib
DLL	Ntmsapi.dll
Unicode and ANSI names	GetNtmsUIOptionsW (Unicode) and GetNtmsUIOptionsA (ANSI)

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