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Windows Media Player 11 SDK IWMPEffects2::OnWindowMessage 

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IWMPEffects2::OnWindowMessage

The OnWindowMessage method is called by Windows Media Player to pass window messages to a visualization.

Syntax

Parameters

  msg

[in]  UINT that identifies the window message.

  WParam

[in]  WPARAM specifying a window message parameter.

  LParam

[in]  LPARAM specifying a window message parameter.

  plResultParam

[in]  Pointer to an LRESULT specifying the result code for the window message.

Return Values

This method returns an HRESULT.

Remarks

Your implementation must only return S_OK if it has handled the window message. If it has not handled the window message, it should return S_FALSE. If this method is not implemented, return E_NOTIMPL.

Requirements

Version: Windows Media Player 9 Series or later.

Header: Include effects.h.

See Also

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