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copied!<p>When you assign a <code>UTF8String</code> variable to a <code>WideString</code> variable, the compiler automatically inserts instructions to decode the string (in Delphi 2009 and later). It coverts UTF-8 to UTF-16, which is what <code>WideString</code> holds. If your <code>WideString</code> variable holds Chinese characters, then that's because your UTF-8-encoded string holds UTF-8-encoded Chinese characters.</p> <p>If you want your string <code>ws</code> to hold 16-bit versions of the bytes in your <code>UTF8String</code> <code>s</code>, then you can by-pass the automatic conversion with some type-casting:</p> <pre><code>var ws: WideString; i: Integer; c: AnsiChar; SetLength(ws, Length(s)); for i := 1 to Length(s) do begin c := s[i]; ws[i] := WideChar(Ord(c)); end; </code></pre> <hr> <p>If you're using Delphi 2009 or later (which includes the XE series), then you should consider using <code>UnicodeString</code> instead of <code>WideString</code>. The former is a native Delphi type, whereas the latter is more of a wrapper for the Windows <code>BSTR</code> type. Both types exhibit the automatic conversion behavior when assigning to and from <code>AnsiString</code> derivatives like <code>UTF8String</code>, though, so they type you use doesn't affect this answer.</p> <hr> <p>In earlier Delphi versions, the compiler would attempt to decode the string using the system code page (which is never UTF-8). To make it decode the string properly, call <code>Utf8Decode</code>:</p> <pre><code>ws := Utf8Decode(s); </code></pre>

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