Hosting the Windows Media Player Control in a Windows Application

To use the Windows Media Player ActiveX control (including the user interface) in a Windows-based program, you must provide an ActiveX control container. ATL provides the CAxWindow class to provide ActiveX host window functionality.

To host the Windows Media Player control using the CAxWindow class, follow these steps:

  1. Include the following headers:

    #include "wmp.h"
    #include <atlbase.h>
    #include <atlcom.h>
    #include <atlhost.h>
    #include <atlctl.h>
  2. Declare member variables, as follows:

    CAxWindow  m_wndView;  // ActiveX host window class.
    CComPtr<IWMPPlayer>  m_spWMPPlayer;  // Smart pointer to IWMPPlayer interface.
  3. When your application window is created, call AtlAxWinInit, which is required when using the ATL ActiveX host window.

  4. Declare local variables for return codes and to contain the pointer to the host window interface:

    CComPtr<IAxWinHostWindow>  spHost;
    HRESULT  hr;
  5. Create the host window:

    m_wndView.Create(m_hWnd, rcClient, NULL, WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN, WS_EX_CLIENTEDGE);
  6. Retrieve the host window interface pointer:

    hr = m_wndView.QueryHost(&spHost);
  7. Create the Windows Media Player control in the host window using the class ID:

    hr = spHost->CreateControl(CComBSTR(_T("{6BF52A52-394A-11d3-B153-00C04F79FAA6}")), m_wndView, 0);
  8. Retrieve the IWMPPlayer interface pointer:

    hr = m_wndView.QueryControl(&m_spWMPPlayer);

When you write your own code, be sure to check each HRESULT return code for errors.

For a complete sample that illustrates how to host the Windows Media Player ActiveX control by using the CAxWindow class, see the WMPHost sample.

Hosting the Windows Media Player 10 Mobile control in Windows CE

Microsoft eMbedded Visual C++ 4.0 and the Pocket PC 2003 SDK or the Smartphone 2003 SDK must be installed when developing Windows CE-based applications that host a Windows Media Player 10 Mobile control. Also, unlike ATL for Windows, ATL for Windows CE does not support the apartment threading model. Therefore, you must find all instances of apartment threading in your ATL project and change them to use free threading.


Using the Windows Media Player Control in a C++ Program