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Windows Media Player 11 SDK IWMPWindowMessageSink::OnWindowMessage (deprecated) 

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IWMPWindowMessageSink::OnWindowMessage (deprecated)

This page documents a feature that may be unavailable in future versions of Windows Media Player and the Windows Media Player SDK.

The OnWindowMessage method receives window messages.

Syntax

Parameters

uMsg

[in]  The Windows message received.

wparam

[in]  Message-specific data.

lparam

[in]  Message-specific data.

plRet

[out]  Pointer to a long integer containing the return value.

pfHandled

[out]  Pointer to a Boolean, true indicating handled.

Return Values

The method returns an HRESULT.

Remarks

When a rendering plug-in window is not hosted in the Windows Media Player UI, such as when the Player is in windowless mode or the Player is rendering Windows Media video, it needs a mechanism to receive window messages from the Player. In these cases, the Player forwards window messages to the plug-in by calling this method.

Windows Media Player queries all active rendering plug-ins to determine whether they support this method and automatically forwards window messages to each plug-in that does.

Requirements

Version: Windows Media Player 9 Series or later.

Header: Include wmprealestate.h.

See Also

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