cpi_stream.h

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typedef void* CP_HINSTREAM;  
typedef void (*pfn_StreamUninitialise)(CP_HINSTREAM hStream);
typedef BOOL (*pfn_StreamRead)(CP_HINSTREAM hStream, void* pDestBuffer, const unsigned int iBytesToRead, unsigned int* piBytesRead);
typedef void (*pfn_StreamSeek)(CP_HINSTREAM hStream, const unsigned int iNewOffset);
typedef UINT (*pfn_StreamTell)(CP_HINSTREAM hStream);
typedef UINT (*pfn_StreamGetLength)(CP_HINSTREAM hStream);
typedef BOOL (*pfn_StreamIsSeakable)(CP_HINSTREAM hStream);
//
typedef struct _CPs_InStream
{
    pfn_StreamUninitialise Uninitialise;
    pfn_StreamRead Read;
    pfn_StreamSeek Seek;
    pfn_StreamTell Tell;
    pfn_StreamGetLength GetLength;
    pfn_StreamIsSeakable IsSeekable;

    void* m_pModuleCookie;	 

} CPs_InStream;
//
CPs_InStream* CP_CreateInStream(const char* pcFlexiURL, HWND hWndOwner);