Conversion of UTF-8 char * to CString

How do I convert a string in UTF-8 char* to CString?

#include <windows.h>
#include <atlstr.h>

bool Utf8ToCString( CString& cstr, const char* utf8Str )
{
    size_t utf8StrLen = strlen(utf8Str);

    if( utf8StrLen == 0 )
    {
        cstr.Empty();
        return true;
    }

#ifdef UNICODE
    // CString is UNICODE string so we just decode UTF-8 to wide string
    int cstrLen = MultiByteToWideChar(
                            CP_UTF8, 0,
                            utf8Str, utf8StrLen,  NULL, 0
                            );

    if( cstrLen > 0 )
    try
    {
        LPWSTR cstrBuf = cstr.GetBuffer(cstrLen+1);

        cstrLen = MultiByteToWideChar(
                            CP_UTF8, 0,
                            utf8Str, utf8StrLen,  cstrBuf, cstrLen+1
                            );

        if( cstrLen > 0 )
        {
            cstr.ReleaseBuffer(cstrLen);
            return true;
        }

        cstr.ReleaseBuffer(0);
    }
    catch(...) {} // CMemoryException from cstr.GetBuffer()
#else
    // CString is system ANSI string so (1) we decode UTF-8 to wide string...
    int wstrLen = MultiByteToWideChar(
                            CP_UTF8,  0,
                            utf8Str, utf8StrLen,  NULL, 0
                            );
    WCHAR* wstrBuf;

    if(  wstrLen > 0  &&
        ( wstrBuf = (WCHAR*)malloc( (wstrLen+1)*sizeof(WCHAR) ) ) != NULL )
    {
        int wstrLen = MultiByteToWideChar(
                            CP_UTF8,  0,
                            utf8Str, utf8StrLen,  wstrBuf, wstrLen+1
                            );
        int cstrLen;

        //... and (2) we encode wide string to system ANSI encoding
        if(  wstrLen > 0  &&
              ( cstrLen = WideCharToMultiByte(
                                    CP_ACP, 0,  wstrBuf, wstrLen, NULL, 0
                                    ) ) > 0  )
        try
        {
            LPSTR cstrBuf = cstr.GetBuffer(cstrLen+1);

            cstrLen = WideCharToMultiByte(
                            CP_ACP,  0,
                            wstrBuf, wstrLen,   cstrBuf, cstrLen+1
                            );

            if( cstrLen > 0 )
            {
                free(wstrBuf);
                cstr.ReleaseBuffer(cstrLen);
                return true;
            }

            cstr.ReleaseBuffer(0);
        }
        catch(...) {} // CMemoryException from cstr.GetBuffer()

        free(wstrBuf);
    }
#endif

    return false;
}

Though this function is valid for both UNICODE and non-UNICODE configurations IMHO using UNICODE configuration in Win32 programs is much more productive (in general and in this function).