windows-server-2003/multimedia/dshow/vidctl/atsccomponenttypeimpl.h

/////////////////////////////////////////////////////////////////////////////////////
// ATSCComponentTypeimpl.h : implementation helper template for component type interface
// Copyright (c) Microsoft Corporation 1999.

#ifndef ATSCCOMPONENTTYPEIMPL_H
#define ATSCCOMPONENTTYPEIMPL_H

#include "componenttypeimpl.h"

namespace BDATuningModel {

template<class T,
         class MostDerived = IATSCComponentType, 
         LPCGUID iid = &__uuidof(MostDerived),
         LPCGUID LibID = &LIBID_TunerLib, 
         WORD wMajor = 1,
         WORD wMinor = 0, 
         class tihclass = CComTypeInfoHolder
        > class ATL_NO_VTABLE IATSCComponentTypeImpl : 
	public IMPEG2ComponentTypeImpl<T, MostDerived, iid, LibID, wMajor, wMinor, tihclass>
{
// IATSCComponentType
public:
    DWORD m_dwFlags;

    IATSCComponentTypeImpl() : m_dwFlags(0) {}
	virtual ~IATSCComponentTypeImpl() {}
//    typedef IATSCComponentTypeImpl<T, MostDerived, iid, LibID, wMajor, wMinor, tihclass> thistype;
    typedef IMPEG2ComponentTypeImpl<T, MostDerived, iid, LibID, wMajor, wMinor, tihclass> basetype;
    BEGIN_PROP_MAP(IATSCComponentTypeImpl)
        CHAIN_PROP_MAP(basetype)
        PROP_DATA_ENTRY("Flags", m_dwFlags, VT_UI4)
    END_PROP_MAP()

    STDMETHOD(get_Flags)(long *pVal)
    {
        try {
            if (!pVal) {
                return E_POINTER;
            }
			ATL_LOCKT();
            *pVal = m_dwFlags;
        } catch (...) {
            return E_POINTER;
        }

	    return NOERROR;
    }

    STDMETHOD(put_Flags)(long newVal)
    {
		ATL_LOCKT();
        m_dwFlags = newVal;
        MARK_DIRTY(T);

	    return NOERROR;
    }
	STDMETHOD(Clone) (IComponentType **ppCT) {
		try {
			if (!ppCT) {
				return E_POINTER;
			}
			ATL_LOCKT();
			HRESULT hr = basetype::Clone(ppCT);
			if (FAILED(hr)) {
				return hr;
			}
			T* pt = static_cast<T*>(*ppCT);
			pt->m_dwFlags = m_dwFlags;

			return NOERROR;
		} catch (HRESULT h) {
			return h;
		} catch (...) {
			return E_POINTER;
		}
	}
};

}; // namespace

#endif // ATSCCOMPONENTTYPEIMPL_H
// end of file -- ATSCcomponenttypeimpl.h