#include class MyFrame : public wxFrame { public: MyFrame() : wxFrame(NULL, wxID_ANY, wxT("title")) { wxComboBox *cb = new wxComboBox(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0, NULL, wxCB_SORT); cb->Append(wxT("foo")); cb->Append(wxT("bar")); SetSize(wxSize(100, 40)); }; }; class MyApp : public wxApp { public: bool OnInit(void) { (new MyFrame())->Show(true); return true; }; }; IMPLEMENT_APP(MyApp);