nl-vswriter-ivsswritercomponents.md

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NL:vswriter.IVssWriterComponents	IVssWriterComponents (vswriter.h)	Contains methods used to obtain and modify component information.	IVssWriterComponents IVssWriterComponents interface [VSS] IVssWriterComponents interface [VSS] described _win32_ivsswritercomponents base.ivsswritercomponents vswriter/IVssWriterComponents	base\ivsswritercomponents.htm	base	e8ff2491-014c-43c7-bdce-99ed3b408605	12/05/2018	IVssWriterComponents, IVssWriterComponents interface [VSS], IVssWriterComponents interface [VSS],described, _win32_ivsswritercomponents, base.ivsswritercomponents, vswriter/IVssWriterComponents	vswriter.h	Vss.h, VsWriter.h	Windows	Windows XP [desktop apps only]	Windows Server 2003 [desktop apps only]										VssApi.lib			Windows			19H1	IVssWriterComponents vswriter/IVssWriterComponents	c++	APIRef kbSyntax	COM	VssApi.lib VssApi.dll	IVssWriterComponents

IVssWriterComponents class

-description

The IVssWriterComponents interface is a C++ (not COM) interface that contains methods used to obtain and modify component information (in the form of IVssComponent objects) associated with a given writer but stored in a requester's Backup Components Document.

The CVssWriter base class is responsible for passing an instance of the IVssWriterComponents interface to the following event handlers:

• CVssWriter::OnPrepareBackup
• CVssWriter::OnBackupComplete
• CVssWriter::OnPreRestore
• CVssWriter::OnPostRestore
• CVssWriter::OnPostSnapshot

In addition, an instance of the IVssWriterComponentsExt interface, which implements a requester-side version of the IVssWriterComponents interface, is returned by IVssBackupComponents::GetWriterComponents.

IVssWriterComponents defines the following methods.

Method	Description
GetComponent	Returns the components belonging to a given writer instance.
GetComponentCount	Returns the number of components belonging to a given writer instance.
GetWriterInfo	Returns the instance and class identifier of the writer responsible for the components.