Create a new class called MainWindow which should inherit from the wxFrame class Include "wx/wx.h" in the MainWindow header file. If Visual Studio tries to import something else in an attempt to make wxFrame work, just delete it. Add a public constructor and destructor to MainWindow Create an empty destructor for now. In the constructor, some arguments need to be passed to the wxFrame base class This will look something like this: MainWindow::MainWindow : wxFrame(args...) The arguments that wxFrame is expecting are the following wxFrame (wxWindow *parent, wxWindowID id, const wxString &title, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize)