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#### 4.3.1.3 Classes Implementing Multiple Interfaces

Sometimes we will want one object to implement several interfaces. For example, the 3D graphics driver could provide a basic ``iGraphics3D'` interface and several additional optional interfaces such as ``iHalo'`, ``iBumpMap'`, and so on. This is done using special templates:

    class MyGraphics3D :
        public scfImplementation3<MyGraphics3D, iGraphics3D, iHalo, iBumpMap>
    {
    public:
      ...
    };

This is an example of a class implementing three interfaces. You need to give the implementation of all functions from those three interfaces in ``MyGraphics3D'`.

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