| Microsoft DirectX 8.1 (C++) |
The GetMediaType method retrieves the media type, if the media type differs from the previous sample. This method implements the IMediaSample::GetMediaType method.
Syntax
HRESULT GetMediaType(
AM_MEDIA_TYPE **ppMediaType
);
Parameters
ppMediaType
Address of a variable that receives a pointer to an AM_MEDIA_TYPE structure. If the media type has not changed from the previous sample, *ppMediaType is set to NULL.
Return Value
Returns one of the HRESULT values shown in the following table.
| Value | Description |
| S_FALSE | The media type has not changed from the previous sample. |
| S_OK | Success. |
| E_OUTOFMEMORY | Insufficient memory. |
Remarks
When you are done with the media type, free the memory block by calling the DeleteMediaType utility function.
The CMediaSample::m_pMediaType member variable specifies the media type. The CMediaSample::m_dwFlags member variable specifies whether the media type has changed.
See Also