Why put the word "Virtual" If it works without it?
What does it mean "Virtual" ?
Code:#include <wx/app.h> #include <wx/frame.h> class FrmMain: public wxFrame { public: FrmMain(): wxFrame(NULL, wxID_ANY, "2019") { } }; class MyProgram: public wxApp { // virtual bool OnInit() { // Why put the word "Virtual" If it works without it? bool OnInit() { (new FrmMain)->Show(); return true; } }; wxIMPLEMENT_APP(MyProgram);