std::wstring concatted_stdstr = L"hello " + mywstring + L" blah";
LPWSTR concatenated = concatted_stdstr.c_str();
However, the above gives us a read-only value for the concatenated string. We can use wcsdup() to get a writeable copy. Otherwise, we can cast the read-only string to a writeable one as follows.
PWSTR value = const_cast