MFCで char wchar 簡単変換

CStringAからCStringWに突っ込む

例

    // ドキュメント取得
    CStringA strA;
    CStringW strW;
    char lpszPath[MAX_PATH] = "";
    LPITEMIDLIST pidl;
    if (::SHGetSpecialFolderLocation(NULL, CSIDL_PERSONAL, &pidl) == NOERROR)
    {
        ::SHGetPathFromIDList(pidl, lpszPath);
        ::CoTaskMemFree(pidl);
    }
    strA = lpszPath;
    strW = strA;