IWMDRMReader2::TryNextLicense 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 It has been superseded by Source Reader and Sink Writer.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.]

[TryNextLicense 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 TryNextLicense method sets the reader to evaluate the next applicable license (if present) for the file loaded in the reader.

Syntax

HRESULT TryNextLicense();

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 method succeeded.
DRM_S_FALSE
There are no more licenses for this content.
NS_E_INVALID_REQUEST
No file is opened in the reader.
NS_E_DRM_RIV_TOO_SMALL
An updated content revocation list is needed.
NS_E_DRM_UNSUPPORTED_PROPERTY
The file opened in the reader is not protected.

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only],Windows Media Format 9.5 SDK
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header wmsdkidl.h (include Wmsdk.h)
Library WMStubDRM.lib

See also

IWMDRMReader2 Interface