I'm trying to convert from string to LPCWSTR (I use multi-bite).
1) For example:
LPCWSTR ToLPCWSTR(string text)
{
LPCWSTR sw = (LPCWSTR)text.c_str();
return sw;
}
2) This returns Chinese characters:
LPCWSTR ToLPCWSTR(string text)
{
std::wstring stemp = std::wstring(text.begin(), text.end());
LPCWSTR sw = (LPCWSTR)stemp.c_str();
return sw;
}
However, they both always shows squares:
Image
EDITED: My code with an edit by: Barmak Shemirani
std::wstring get_utf16(const std::string &str, int codepage)
{
if (str.empty()) return std::wstring();
int sz = MultiByteToWideChar(codepage, 0, &str[0], (int)str.size(), 0, 0);
std::wstring res(sz, 0);
MultiByteToWideChar(codepage, 0, &str[0], (int)str.size(), &res[0], sz);
return res;
}
string HttpsWebRequest(string domain, string url)
{
LPCWSTR sdomain = get_utf16(domain, CP_UTF8).c_str();
LPCWSTR surl = get_utf16(url, CP_UTF8).c_str();
//(Some stuff...)
}
Return: https://i.gyazo.com/ea4cd50765bfcbe12c763ea299e7b508.png
EDITED: Using another code that pass from UTF8 to UTF16, still the same result.
std::wstring utf8_to_utf16(const std::string& utf8)
{
std::vector<unsigned long> unicode;
size_t i = 0;
while (i < utf8.size())
{
unsigned long uni;
size_t todo;
bool error = false;
unsigned char ch = utf8[i++];
if (ch <= 0x7F)
{
uni = ch;
todo = 0;
}
else if (ch <= 0xBF)
{
throw std::logic_error("not a UTF-8 string");
}
else if (ch <= 0xDF)
{
uni = ch & 0x1F;
todo = 1;
}
else if (ch <= 0xEF)
{
uni = ch & 0x0F;
todo = 2;
}
else if (ch <= 0xF7)
{
uni = ch & 0x07;
todo = 3;
}
else
{
throw std::logic_error("not a UTF-8 string");
}
for (size_t j = 0; j < todo; ++j)
{
if (i == utf8.size())
throw std::logic_error("not a UTF-8 string");
unsigned char ch = utf8[i++];
if (ch < 0x80 || ch > 0xBF)
throw std::logic_error("not a UTF-8 string");
uni <<= 6;
uni += ch & 0x3F;
}
if (uni >= 0xD800 && uni <= 0xDFFF)
throw std::logic_error("not a UTF-8 string");
if (uni > 0x10FFFF)
throw std::logic_error("not a UTF-8 string");
unicode.push_back(uni);
}
std::wstring utf16;
for (size_t i = 0; i < unicode.size(); ++i)
{
unsigned long uni = unicode[i];
if (uni <= 0xFFFF)
{
utf16 += (wchar_t)uni;
}
else
{
uni -= 0x10000;
utf16 += (wchar_t)((uni >> 10) + 0xD800);
utf16 += (wchar_t)((uni & 0x3FF) + 0xDC00);
}
}
return utf16;
}