IWMPContentPartner::Buy method (contentpartner.h)

Article
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 It has been superseded by MediaPlayer.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 Buy method initiates the purchase of digital media content.

Syntax

HRESULT Buy(
  [in] IWMPContentContainerList *pInfo,
  [in] DWORD                    cookie
);

Parameters

[in] pInfo

Pointer to a content container list that represents the content to be purchased.

[in] cookie

A cookie used to identify the transaction. You must store this value and pass it to IWMPContentPartnerCallback::BuyComplete when the purchase transaction is finished.

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

You must call IWMPContentPartnerCallback::BuyComplete exactly once for each call to Buy. Call BuyComplete when the transaction is finished, even if it failed for some reason.

If the user has an expired license for content previously purchased, you can simply update the license.

Requirements

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

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