#include <fx.h>
 
 #include "mywindow.h"
 
FXDEFMAP(MyWindow) MyWindowMap[]={0
 
 };
 
 FXIMPLEMENT(MyWindow,FXMainWindow,MyWindowMap,ARRAYNUMBER(MyWindowMap));
 
 int main(int argc,char ** argv) {
 
 
 
  FXApp application("Tutorial #1","FOX Tutorials");
 
 
 
  application.init(argc,argv);
 
 
 
  new MyWindow(&application);
 
 
 
  application.create();
 
 
 
  return application.run();
 
 }

class MyWindow : public FXMainWindow {
 
    FXDECLARE(MyWindow)
 
     private:
 
  MyWindow() {}
 
   public:
 
  MyWindow(FXApp *);
 
  virtual ~MyWindow();
 
     virtual void create();
 
 };
 
 void MyWindow::create(){
 
  FXMainWindow::create();
 
  show(PLACEMENT_SCREEN);
 
 }

objs\main.o:main.cpp:(.text+0x376): undefined reference to `MyWindow::MyWindow(FX::FXApp*)'
 
objs\main.o:main.cpp:(.rdata$_ZTV8MyWindow[vtable for MyWindow]+0x20): undefined reference to `MyWindow::~MyWindow()'
 
objs\main.o:main.cpp:(.rdata$_ZTV8MyWindow[vtable for MyWindow]+0x24): undefined reference to `MyWindow::~MyWindow()'
 
collect2: ld returned 1 exit status