serialization - Visual C++, CArchive Serialize - Stack Overflow
2013年5月22日 · I learn Visual C++ with Visual Studio 2010. I tried to use Serialize function of MFC CObject. I can't load my object with Serialize function My code: #include <afxwin.h> #include <iostrea...
Where CArchive is currently point in a file - Stack Overflow
2013年5月28日 · COleStreamFile stream; //Stream is pointed to footer location. stream.OpenStream(m_pStg, "Footer", nOpenFlags, pError); // pStg is LPSTORAGE CArchive ar(&stream, CArchive::load); Now what I am interested in knowing is that at which location CArchive is going to read or write. Byte index, file location or something like that.
Retrieve information from CArchive File - Stack Overflow
2021年9月1日 · The file format is documented under TN002: Persistent Object Data Format.While that explains how objects are identified in the data stream for deserialization, the actual logic to dump data into the CArchive and to read it back is at the discretion of the CObject-derived class implementation for classes that use the DECLARE_SERIAL and IMPLEMENT_SERIAL macros.
Where can i find how CArchive serialized MFC C++
2023年3月1日 · The point is I am trying to extract this CTime what was compressed with CArchive into QDateTime using QDataStream. I know that it is not the same, but which is why I am trying to read the raw data out. I have no control over no using CTime CArchive, so ill have to roll with that.
What is the file format that the C++ MFC object CArchive writes to?
2012年1月19日 · I am trying to read in with C# a file written with CArchive. From what I can tell the format is: [length of next set of data][data]...etc. I'm still fuzzy on some of the data, though. How do I read in Date data? What about floats, ints, doubles, etc? Also, [length of next set of data] could be a byte or word or dword. How do I know when it will ...
CArchive serialization with operators - Stack Overflow
2014年2月9日 · ok, but so I lose the "comfort" of using CArchive: I can simply overload << and >> for a whatever ancestor class; the help of CArchive would be (I believe) to automatically doing the overload of << >> operators( that I think is done by DECLARE_SERIAL and IMPLEMENT_SERIAL macros). Overloading << >> manually is the usually system –
c++ - Overloading with CArchive operator - Stack Overflow
2014年3月25日 · I checked the link Can I overload CArchive << operator to work with std::string? about overloading for string type and I used CArchive& operator<<( CArchive& ar, string lhs) {...
c++ - How to check if CArchive is valid - Stack Overflow
2016年8月16日 · The CArchive implementation will know, when it's presented with an invalid stream, provided that you do retain type information in the serialized stream. Your stream operator overloads drop this type information.
How can I get the size of the file referenced in a CArchive?
2017年11月1日 · In general you decode the stream of a CArchive in the reverse ways like you write it. So in most cases there is no need to know the size of the file. Serializing n elements is mostly done using CObList or CObArray or you just write the size of a data block into the archive followed by the BYTEs. The same way you may decode the stream.
Why CFile + CArchive performs better than C I/O stream?
2019年7月8日 · Based on my test, CFile + CArchive always takes about 66% time of CStdioFile. I try to increase the buffer to CStdioFile to as large as 1MB, but still get the same result. Therefore, my question is, since both solutions use buffering, why CStdioFile will always slower than CFile + …