Member Avatar for curt22

Hello, I'm following this tutorial http://fox-toolkit.net/cgi-bin/wiki.pl?Tutorial__Simple_Window
To learn how to make gui programs using the fox toolkit, but I can't get it to compile.
This is what I have in main.cpp

#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();

 }

This is what I have in mywindow.h

class MyWindow : public FXMainWindow {

    FXDECLARE(MyWindow)

     private:

  MyWindow() {}

   public:

  MyWindow(FXApp *);

  virtual ~MyWindow();

     virtual void create();

 };

 void MyWindow::create(){

  FXMainWindow::create();

  show(PLACEMENT_SCREEN);

 }

But I'm getting these errors

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

I've searched ,but I can't figure out the answer.

I'm using windows with codeblocks and mingw.

  • 3 Contributors
  • 10 Replies
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  • 2 Days Discussion Span
  • Latest Post Latest Post by curt22

Recommended Answers

All 10 Replies

Member Avatar for Ancient Dragon

the link you posted doesn't go to a tutorial. Did you download the precompiled package or the source code and compile it yourself ?

Member Avatar for Ancient Dragon

My guess is that you are not linking with the fox libraries. I tried to download it but only got errors that page cannot be displayed.

Member Avatar for curt22

Could someone please help. :confused:

Member Avatar for Salem

So do you have a mywindow.cpp which implements the rest of the functionality of your class in mywindow.h ?

Member Avatar for curt22

So do you have a mywindow.cpp which implements the rest of the functionality of your class in mywindow.h ?

I only have two files main.cpp & mywindow.h like the tutorial said. They are attached to this post.

#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);
 }
Member Avatar for Salem

Well they need to be implemented SOMEWHERE.

My guess is since you've prefixed it with 'my', then it's your responsibility to implement it.

Member Avatar for Ancient Dragon

curt22: if you re-read that tutorial you will see where it talks about mywindow.cpp, located about 3/4th down in the tutorial.

The only thing left to do, is to implement our "MyWindow" class ...

Member Avatar for curt22

curt22: if you re-read that tutorial you will see where it talks about mywindow.cpp, located about 3/4th down in the tutorial.

Thanks I guess I read it wrong. :$ I'm going to reread it later (I can't now). Then I'll let you know what happens.

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