WMCreateBackupRestorer function (wmsdkidl.h)

项目
4/26/2023

[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The WMCreateBackupRestorer function creates a backup restorer object.

Syntax

HRESULT WMCreateBackupRestorer(
  [in]  IUnknown         *pCallback,
  [out] IWMLicenseBackup **ppBackup
);

Parameters

[in] pCallback

Pointer to an IWMStatusCallback interface containing the OnStatus callback method to be used by the new backup restorer object.

[out] ppBackup

Pointer to a pointer to the IWMLicenseBackup interface of the newly created backup restorer object.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code	Description
S_OK	The function succeeded.
E_OUTOFMEMORY	The function is unable to allocate memory for the new object.

Remarks

Use IWMLicenseBackup::QueryInterface to obtain a pointer to the IWMBackupRestoreProps interface.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only],Windows Media Format 7 SDK, or later versions of the SDK
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	wmsdkidl.h (include Wmsdk.h)
Library	Wmvcore.lib
DLL	Wmvcore.dll

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