CString to UTF-8
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hi all, i did never care that much about unicode, WCHAR, T_(), UTF-X and all these character-width things. but now someone wants to have an UTF-8-encoded string from my application. so now i'm sitting here for hours reading FAQs and postings and still haven't found the
CString::ToUtf8(/*out*/ BYTE *pUtf8String, /*out*/ long &nSize)function. ;) where is it? for real: what's the easiest way to just get that CString i have into UTF-8? (my app is compiled without _UNICODE - so the chars in the CString are all 8 bit wide). tia :wq -
hi all, i did never care that much about unicode, WCHAR, T_(), UTF-X and all these character-width things. but now someone wants to have an UTF-8-encoded string from my application. so now i'm sitting here for hours reading FAQs and postings and still haven't found the
CString::ToUtf8(/*out*/ BYTE *pUtf8String, /*out*/ long &nSize)function. ;) where is it? for real: what's the easiest way to just get that CString i have into UTF-8? (my app is compiled without _UNICODE - so the chars in the CString are all 8 bit wide). tia :wqI belive you are back to Win32 here. Use MultiByteToWideChar to convert the string, specifying CP_UTF8 as the code page. Store the result in a WCHAR array and from that point on I think you are without your faitful CString, in .NET there is a CStringW and CStringA that you can explicatly use or a normal CString which is set depending on the _UNICODE define, but not in VC6. You could always try STL - string and wstring.
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I belive you are back to Win32 here. Use MultiByteToWideChar to convert the string, specifying CP_UTF8 as the code page. Store the result in a WCHAR array and from that point on I think you are without your faitful CString, in .NET there is a CStringW and CStringA that you can explicatly use or a normal CString which is set depending on the _UNICODE define, but not in VC6. You could always try STL - string and wstring.
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hi all, i did never care that much about unicode, WCHAR, T_(), UTF-X and all these character-width things. but now someone wants to have an UTF-8-encoded string from my application. so now i'm sitting here for hours reading FAQs and postings and still haven't found the
CString::ToUtf8(/*out*/ BYTE *pUtf8String, /*out*/ long &nSize)function. ;) where is it? for real: what's the easiest way to just get that CString i have into UTF-8? (my app is compiled without _UNICODE - so the chars in the CString are all 8 bit wide). tia :wq// First, get UTF-16 version of the string
MultiByteToWideChar(CP_ACP, /* etc */ );
// Now convert to UTF-8
WideCharToMultiByte(CP_UTF8, /* etc */ );The first converts the code page your thread is running on into UTF-16 (2 byte Unicode encoding). This is necessary to get the canonical Unicode values. The second performs the fairly simple transform from UTF-16 to UTF-8. Of course, if you're sure you'll only ever be using the ASCII character set, you already have UTF-8, since the first 128 characters are a direct map. Since you have an accent in your name, though - ü is ANSI code 252 (and also Unicode U+00FC) - I assume you'll need the proper technique.
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// First, get UTF-16 version of the string
MultiByteToWideChar(CP_ACP, /* etc */ );
// Now convert to UTF-8
WideCharToMultiByte(CP_UTF8, /* etc */ );The first converts the code page your thread is running on into UTF-16 (2 byte Unicode encoding). This is necessary to get the canonical Unicode values. The second performs the fairly simple transform from UTF-16 to UTF-8. Of course, if you're sure you'll only ever be using the ASCII character set, you already have UTF-8, since the first 128 characters are a direct map. Since you have an accent in your name, though - ü is ANSI code 252 (and also Unicode U+00FC) - I assume you'll need the proper technique.
yup thx. i just figured out how to use Wide...()
CStringW str("äö€èéß");
long size = str.GetLength()*6+1;
char *out = new char[size];
if (!WideCharToMultiByte(CP_UTF8,0,str,-1,out,size,NULL,NULL))
{
DWORD err = GetLastError();
}
delete [] out;*6 is a bit exaggerated, but you never know - memory is cheap nowadays ;) i'll use that multitowide-function too - thx for your reply. things look way smoother now ;) :wq