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NF:vswriter.CVssWriter.GetContext |
CVssWriter::GetContext (vswriter.h) |
The GetContext information returns the current context for any ongoing or possible shadow copies. |
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base\cvsswriter_getcontext.htm |
base |
efe2f43b-fbcf-4b30-a6d4-31d563d321c5 |
12/05/2018 |
CVssWriter interface [VSS],GetContext method, CVssWriter.GetContext, CVssWriter::GetContext, GetContext, GetContext method [VSS], GetContext method [VSS],CVssWriter interface, _win32_cvsswriter_getcontext, base.cvsswriter_getcontext, vswriter/CVssWriter::GetContext |
vswriter.h |
Vss.h, VsWriter.h |
Windows |
Windows Vista [desktop apps only] |
Windows Server 2003 [desktop apps only] |
VssApi.lib |
Windows |
19H1 |
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The GetContext information returns the current context for any ongoing or possible shadow copies.
GetContext is a protected method implemented by the CVssWriter base class.
This method returns the context for any shadow copies involving the writer as a bit mask (or bitwise OR) of _VSS_SNAPSHOT_CONTEXT and _VSS_VOLUME_SNAPSHOT_ATTRIBUTES values.
The default context for a shadow copy is VSS_CTX_BACKUP.
A requester can set the context for a shadow copy by calling IVssBackupComponents::SetContext at any time prior to creating a shadow copy with IVssBackupComponents::DoSnapshotSet.
IVssBackupComponents::DoSnapshotSet generates a number of events (PrepareForSnapshot, Freeze, Thaw, PostSnapshot), the first of which is PrepareForSnapshot.
Therefore, if a writer is participating in a shadow copy operation, a definitive value of that shadow copy's context cannot be found when GetContext is called prior to CVssWriter::OnPrepareSnapshot.
IVssBackupComponents::DoSnapshotSet