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Retrieves the specified number of items in the enumeration sequence.
HRESULT Next( ULONG cMediaTypes , AM_MEDIA_TYPE ** ppMediaTypes , ULONG * pcFetched );
Parameters
- cMediaTypes
- [in] Number of media types to place.
- ppMediaTypes
- [out] Array in which to place the pointers to the next media type.
- pcFetched
- [out] Actual count passed.
Return Values
Returns an HRESULTvalue that depends on the implementation. HRESULTcan be one of the following standard constants, or other values not listed.
Value Description E_FAIL Failure. E_POINTER Null pointer argument. E_INVALIDARG Invalid argument. E_NOTIMPL Method isn't supported. S_OK or NOERROR Success. Remarks
To use this method, pass an array of pointers to media types. (If you want only a single media type, you can pass a pointer to a media type pointer in place of an array of media type pointers.) The interface allocates the necessary AM_MEDIA_TYPEstructures and initializes them with the variable format block. Free each media type by calling DeleteMediaType, which will free the format block and the media type itself.