IMFPMediaPlayerCallback interface

Important  Deprecated. This API may be removed from future releases of Windows. Applications should use the Media Session for playback.

Callback interface for the IMFPMediaPlayer interface.

To set the callback, pass an IMFPMediaPlayerCallback pointer to the MFPCreateMediaPlayer function in the pCallback parameter. The application implements the IMFPMediaPlayerCallback interface.

Members

The IMFPMediaPlayerCallback interface inherits from the IUnknown interface. IMFPMediaPlayerCallback also has these types of members:

Methods

The IMFPMediaPlayerCallback interface has these methods.

MethodDescription
OnMediaPlayerEvent

Called by the MFPlay player object to notify the application of a playback event.

 

Examples

The following example shows the basic framework for implementing this interface. The application would need to add the implementation of the OnMediaPlayerEvent method.



#include <shlwapi.h>

class PlayerCallback : public IMFPMediaPlayerCallback
{
public:

    PlayerCallback() : m_refcount(1)
    {
    }

    STDMETHODIMP QueryInterface(REFIID riid, void** ppv)
    {
        static const QITAB qit[] = 
        {
            QITABENT(PlayerCallback, IMFPMediaPlayerCallback),
            { 0 },
        };
        return QISearch(this, qit, riid, ppv);
    }

    STDMETHODIMP_(ULONG) AddRef() 
    { 
        return InterlockedIncrement(&m_refcount); 
    }
    STDMETHODIMP_(ULONG) Release() 
    {
        ULONG count = InterlockedDecrement(&m_refcount);
        if (count == 0)
        {
            delete this;
            return 0;
        }
        return count;
    }


    // IMFPMediaPlayerCallback methods
    // TODO: Implement this method.
    void STDMETHODCALLTYPE OnMediaPlayerEvent(MFP_EVENT_HEADER *pEventHeader);

private:
    long m_refcount;
};   


Requirements

Minimum supported client

Windows 7 [desktop apps only]

Minimum supported server

Windows Server 2008 R2 [desktop apps only]

Header

Mfplay.h

See also

Media Foundation Interfaces
Using MFPlay for Audio/Video Playback

 

 

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