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GetClusterInformation function (clusapi.h)

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Retrieves a cluster's name and version. The PCLUSAPI_GET_CLUSTER_INFORMATION type defines a pointer to this function.

Syntax

DWORD GetClusterInformation(
  [in]            HCLUSTER             hCluster,
  [out]           LPWSTR               lpszClusterName,
  [in, out]       LPDWORD              lpcchClusterName,
  [out, optional] LPCLUSTERVERSIONINFO lpClusterInfo
);

Parameters

[in] hCluster

Handle to a cluster.

[out] lpszClusterName

Pointer to a null-terminated Unicode string containing the name of the cluster identified by hCluster.

[in, out] lpcchClusterName

Pointer to the size of the lpszClusterName buffer as a count of characters. On input, specify the maximum number of characters the buffer can hold, including the terminating NULL. On output, specifies the number of characters in the resulting name, excluding the terminating NULL.

[out, optional] lpClusterInfo

Either NULL or a pointer to a CLUSTERVERSIONINFO structure describing the version of the Cluster service. When lpClusterInfo is not NULL, the dwVersionInfoSize member of this structure should be set as follows: lpClusterInfo->dwVersionInfoSize = sizeof(CLUSTERVERSIONINFO);

Return value

If the operation succeeds, the function returns ERROR_SUCCESS (0).

If the operation fails, the function returns a system error code. The following is one of the possible values.

Return code Description
ERROR_MORE_DATA
 The buffer pointed to by lpszClusterName is not big enough to hold the result. The lpcchClusterName parameter returns the number of characters in the result, excluding the terminating NULL.

Remarks

Note that lpcchClusterName refers to a count of characters and not a count of bytes, and that the returned size does not include the terminating NULL in the count. For more information on sizing buffers, see Data Size Conventions.

Requirements

Requirement Value
Minimum supported client None supported
Minimum supported server Windows Server 2008 Enterprise, Windows Server 2008 Datacenter
Target Platform Windows
Header clusapi.h
Library ClusAPI.lib
DLL ClusAPI.dll

See also

CLUSTERVERSIONINFO