IWMPContentPartner::RefreshLicense method (contentpartner.h)

Artículo
4/26/2023

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 It has been superseded by MediaPlayer.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

Note This section describes functionality designed for use by online stores. Use of this functionality outside the context of an online store is not supported.

The RefreshLicense method initiates the update of a license for the specified media file.

Syntax

HRESULT RefreshLicense(
  [in] DWORD            dwCookie,
  [in] VARIANT_BOOL     fLocal,
  [in] BSTR             bstrURL,
  [in] WMPStreamingType type,
  [in] ULONG            contentID,
  [in] BSTR             bstrRefreshReason,
  [in] VARIANT          *pReasonContext
);

Parameters

[in] dwCookie

A cookie that identifies the update request. When the online store has finished updating the license, it passes this cookie to IWMPContentPartnerCallback::RefreshLicenseComplete.

[in] fLocal

VARIANT_BOOL that specifies whether the media file is located on the user's computer. VARIANT_TRUE specifies that the file is on the user's computer. VARIANT_FALSE specifies that the file is not currently on the user's computer, but is available from the online store's servers.

[in] bstrURL

BSTR containing the URL of the media file on the user's computer. This is NULL if the media file is not on the user's computer.

[in] type

A member of the WMPStreamingType enumeration that specifies the type (music, video, or radio) of the media file.

[in] contentID

Content ID of the media file for which the updated license is being requested.

[in] bstrRefreshReason

Reason for refreshing the license. The caller (Windows Media Player) sets this parameter to one of the following values:

g_szRefreshLicensePlay

g_szRefreshLicenseBurn

g_szRefreshLicenseSync

[in] pReasonContext

If refreshing the license for synchronization to a device, this parameter has type VT_BSTR and contains the device name. Otherwise, this parameter has type VT_EMPTY and supplies no information.

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.

Remarks

This method must not display a user interface.

This method initiates the license update and then returns immediately. When the online store has completed the license update, the online store's plug-in calls IWMPContentPartnerCallback::RefreshLicenseComplete.

Requirements

Requirement	Value
Minimum supported client	Windows Media Player 11
Target Platform	Windows
Header	contentpartner.h

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