Create GUI App in c++ and c, with DLL Library Framework on Visual studio 2017 57

Shows how to create a, GUI windows form project with, dll library in c plus plus and c sharp on visual studio 2017 C++ code: is one file , include int main() guicpp::MyForm form; return 0; is one source file , include iostream , ,for cout, include fstream , , for ofstream, ifstream, include string , ,for and getline, includelist , ,for lists, include void Header::pulloutcontents(std::string infile, std::liststd::string elements) std::ifstream std::string line; for (int lineno 1; std::getline(inputfile, line); ++lineno) void Header::showcontents(std::ostream out, const std::list, 6