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else if(fileName.substr(fileName.rfind(L"."))==L".prj")
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 DTchar mbsFileName[512];
 DTint mbsSize=std::wcstombs(mbsFileName,m_dumpFileName.c_str(),m_dumpFileName.size()*sizeof(wchar_t));
 mbsFileName[mbsSize]=0;
 m_pDumpStream=new std::fstream(mbsFileName,std::ios::out|std::ios::binary);
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»òÕß“You can use wcstombs() to narrow the filename or if you're feeling adventurous, the narrow() member function of the ctype facet of a std::locale.”
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#ifndef QT_NO_STL
/*! fn QString QString::fromStdWString(const std::wstring &str)
    Returns a copy of a str. a str is assumed to be encoded in
    utf16 if the size of wchar_t is 2 bytes (e.g. on windows) and ucs4
    if the size of wchar_t is 4 bytes (most Unix systems).
    This constructor is only available if Qt is configured with STL
    compabitility enabled.
    sa fromUtf16(), fromLatin1(), fromLocal8Bit(), fromUtf8()
*/
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