IVssWMComponent::GetFile method (vsbackup.h)

  • Article

The GetFile method obtains a file descriptor associated with a file group.

Syntax

HRESULT GetFile(
  [in]  UINT           iFile,
  [out] IVssWMFiledesc **ppFiledesc
);

Parameters

[in] iFile

Offset between 0 and n-1, where n is the number of files in the file group as specified by the cFileCount member of the VSS_COMPONENTINFO object returned by IVssWMComponent::GetComponentInfo.

[out] ppFiledesc

Doubly indirect pointer to a IVssWMFiledesc object containing the returned file descriptor information.

Return value

The following are the valid return codes for this method.

Value Meaning
S_OK
 Successfully returned a pointer to an instance of the IVssWMFiledesc interface.
E_INVALIDARG
 One of the parameter values is not valid.
E_OUTOFMEMORY
 The caller is out of memory or other system resources.
VSS_E_INVALID_XML_DOCUMENT
 The XML document is not valid. Check the event log for details. For more information, see Event and Error Handling Under VSS.
VSS_E_OBJECT_NOT_FOUND
 The specified file does not exist.
VSS_E_UNEXPECTED
 Unexpected error. The error code is logged in the error log file. For more information, see Event and Error Handling Under VSS.

Windows Server 2008, Windows Vista, Windows Server 2003 and Windows XP:  This value is not supported until Windows Server 2008 R2 and Windows 7. E_UNEXPECTED is used instead.

Remarks

The caller is responsible for calling IUnknown::Release to release system resources held by the returned IVssWMFiledesc object.

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header vsbackup.h (include VsBackup.h, Vss.h, VsWriter.h)
Library VssApi.lib

See also

IVssWMComponent