Result_t WriteBufferIntoFile(const Kumu::ByteString& Buffer, const std::string& Filename);
+#ifdef KM_WIN32_UTF8
+ //------------------------------------------------------------------------------------------
+ // wide char support for win32 file I/O
+ //------------------------------------------------------------------------------------------
+
+ //
+ Result_t wbstr_to_utf8(const Kumu::ByteString& in, std::string& out);
+ Result_t utf8_to_wbstr(const std::string& in, Kumu::ByteString& out);
+#endif
+
//------------------------------------------------------------------------------------------
// File I/O
//------------------------------------------------------------------------------------------