It should be mentioned that lite-C only supports class methods, but no inherited methods. I found that out some time ago. So you need to define the inherited methods again in the lite-C class.

You can see this in how the Direct X classes are defined in lite-C, like this:

Code:
#define INTERFACE IDirect3DTexture9

DECLARE_INTERFACE_(IDirect3DTexture9, IDirect3DBaseTexture9)
{
    /*** IUnknown methods ***/
    STDMETHOD(QueryInterface)(THIS_ REFIID riid, void** ppvObj) PURE;
    STDMETHOD_(ULONG,AddRef)(THIS) PURE;
    STDMETHOD_(ULONG,Release)(THIS) PURE;

    /*** IDirect3DBaseTexture9 methods ***/
    STDMETHOD(GetDevice)(THIS_ IDirect3DDevice9** ppDevice) PURE;
    STDMETHOD(SetPrivateData)(THIS_ REFGUID refguid,CONST void* pData,DWORD SizeOfData,DWORD Flags) PURE;
    STDMETHOD(GetPrivateData)(THIS_ REFGUID refguid,void* pData,DWORD* pSizeOfData) PURE;
    STDMETHOD(FreePrivateData)(THIS_ REFGUID refguid) PURE;
    STDMETHOD_(DWORD, SetPriority)(THIS_ DWORD PriorityNew) PURE;
    STDMETHOD_(DWORD, GetPriority)(THIS) PURE;
    STDMETHOD_(void, PreLoad)(THIS) PURE;
    STDMETHOD_(D3DRESOURCETYPE, GetType)(THIS) PURE;
    STDMETHOD_(DWORD, SetLOD)(THIS_ DWORD LODNew) PURE;
    STDMETHOD_(DWORD, GetLOD)(THIS) PURE;
    STDMETHOD_(DWORD, GetLevelCount)(THIS) PURE;
    STDMETHOD(SetAutoGenFilterType)(THIS_ D3DTEXTUREFILTERTYPE FilterType) PURE;
    STDMETHOD_(D3DTEXTUREFILTERTYPE, GetAutoGenFilterType)(THIS) PURE;
    STDMETHOD_(void, GenerateMipSubLevels)(THIS) PURE;
    STDMETHOD(GetLevelDesc)(THIS_ UINT Level,D3DSURFACE_DESC *pDesc) PURE;
    STDMETHOD(GetSurfaceLevel)(THIS_ UINT Level,void** ppSurfaceLevel) PURE;//IDirect3DSurface9
    STDMETHOD(LockRect)(THIS_ UINT Level,D3DLOCKED_RECT* pLockedRect,CONST RECT* pRect,DWORD Flags) PURE;
    STDMETHOD(UnlockRect)(THIS_ UINT Level) PURE;
    STDMETHOD(AddDirtyRect)(THIS_ CONST RECT* pDirtyRect) PURE;
};
MY_DECLARE_INTERFACE(IDirect3DTexture9)


This defines the IDirect3DTexture9 class, but the IDirect3DBaseTexture9 is ignored in the DECLARE_INTERFACE definition. So all IDirect3DBaseTexture9 methods are declared again in the IDirect3DTexture9 class under lite-C.