const char*轉換成wstring類型



std::wstring CATOW(const char* lpcszString)//傳回值類型是wstring類型
{
 int unicodeLen = ::MultiByteToWideChar(CP_ACP, 0, lpcszString, -1, NULL, 0);//擷取字元串長度


 wchar_t* pUnicode = new wchar_t[unicodeLen + 1];//開辟寬位元組記憶體
 memset(pUnicode, 0, (unicodeLen + 1) * sizeof(wchar_t));//清空


 ::MultiByteToWideChar(CP_ACP, 0, lpcszString, -1, (LPWSTR)pUnicode, unicodeLen);//轉換
 std::wstring wString = (wchar_t*)pUnicode;//強轉後指派給傳回變量
 delete[] pUnicode;
 return wString;
}