IWMDRMWriter3::SetProtectStreamSamples method (wmsdkidl.h)
[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 It has been superseded by Source Reader and Sink Writer.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.]
[SetProtectStreamSamples 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 SetProtectStreamSamples method configures the writer to accept encrypted stream samples. This method is used as part of the process of importing protected content from a third party content protection scheme (CPS) into Windows Media DRM.
Syntax
HRESULT SetProtectStreamSamples(
[in] WMDRM_IMPORT_INIT_STRUCT *pImportInitStruct
);
Parameters
[in] pImportInitStruct
Address of a WMDRM_IMPORT_INIT_STRUCT structure containing initialization information needed to import protected content.
Return value
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
An updated content revocation list is needed. |
|
The method succeeded. |
Remarks
SetProtectStreamSamples is used to configure the writer object for importing protected content.
When importing protected content, this method must be called after configuring the writer but before calling IWMWriter::BeginWriting. Before you can call this method, you must validate and extract the machine Windows Media DRM public key from the machine certificate collection.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only],Windows Media Format 11 SDK |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | wmsdkidl.h (include Wmsdk.h) |
| Library | WMStubDRM.lib |
See also
IWMDRMSecurity::GetMachineCertificate