D:/opendownloadmanager/ODM-1.x/Include.Add/DShow/pstream.h

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/*
  Free Download Manager Copyright (c) 2003-2007 FreeDownloadManager.ORG
  Open Download Manager Copyright (c) 2008-2010 OpenDownloadManager.ORG
*/                    

#ifndef __PSTREAM__
#define __PSTREAM__                                                                  

class CPersistStream : public IPersistStream {
    private:

    protected:
        DWORD     mPS_dwFileVersion;         
        BOOL      mPS_fDirty;

    public:

        STDMETHODIMP IsDirty()
            {return (mPS_fDirty ? S_OK : S_FALSE);}  
        STDMETHODIMP Load(LPSTREAM pStm);
        STDMETHODIMP Save(LPSTREAM pStm, BOOL fClearDirty);
        STDMETHODIMP GetSizeMax(ULARGE_INTEGER * pcbSize)
                         
                         { pcbSize->QuadPart = 12*sizeof(WCHAR)+SizeMax(); return NOERROR; }
    

        CPersistStream(IUnknown *punk, HRESULT *phr);
        ~CPersistStream();

        HRESULT SetDirty(BOOL fDirty)
            { mPS_fDirty = fDirty; return NOERROR;}  
        
        STDMETHODIMP GetClassID(CLSID *pClsid) PURE;
        
        virtual DWORD GetSoftwareVersion(void) { return 0; }  
        virtual int SizeMax() {return 0;}
        virtual HRESULT WriteToStream(IStream *pStream);
        virtual HRESULT ReadFromStream(IStream *pStream);
        

    private:

};          

STDAPI WriteInt(IStream *pIStream, int n);  

STDAPI_(int) ReadInt(IStream *pIStream, HRESULT &hr);

#endif 

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