Microsoft Windows CE 3.0  

Override the Base Class Member Functions

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When you determine which base class to use( see Determine Which Base Classes to Use), you write the header and define which member function to implement. You decide either to derive your filter class from the transform base classes ( CTransformFilteror CTransInPlaceFilter), or from the more generic CBaseFilterfilter class. In this section, you learn how to override the following member functions.