IWMLicenseRestore::RestoreLicenses method (wmsdkidl.h)

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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 It has been superseded by Source Reader and Sink Writer.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.]

[RestoreLicenses is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions. Instead, use Microsoft PlayReady. ]

The RestoreLicenses method restores licenses that were previously backed up.

Syntax

HRESULT RestoreLicenses(
  [in] DWORD             dwFlags,
  [in] IWMStatusCallback *pCallback
);

Parameters

[in] dwFlags

DWORD containing the flags.

Flag	Description
WM_RESTORE_INDIVIDUALIZE	Indicates that the application has received permission from the user to individualize their computer. (See Individualizing DRM Applications section.)

[in] pCallback

Pointer to an IWMStatusCallback interface.

Return value

If the method succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.

Remarks

For more information on how to specify the location of the backup file (there are predefined properties for the backup path and restore path for this purpose), see IWMBackupRestoreProps Interface.

The operation of this method is asynchronous, and an IWMStatusCallback interface can be used to track progress.

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; WMStubDRM.lib (if you use DRM)

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