c++ error

[carniolus]

So I've managed to do a c++ application with Anjuta and glade.
It worked great until I've added some signals (for instance on_button1_clicked).
But when I compile this, I get some errors like:

cannot allocate an object of abstract type 'window1'
because the followingvirtual functions are pure within 'windows1'
virtual void window1_glade::on_button1_clicked()

How can I fix that?

[rekahsoft]

don't make it pure virtual (abstract)..take the "=0" off the end of the function declaration.
btw don't foget to use code tags when posting code ;)

[carniolus]

I tried, but now I get another error:


undefined reference to 'window1_glade::on_button1_clicked()'

[duff]

then write the function.

[carniolus]

// generated 2007/6/12 15:47:53 CEST by someone@-desktop.(none)
// using glademm V2.6.0
//
// DO NOT EDIT THIS FILE ! It was created using
// glade-- /home/user/Projects/hello/hello.glade
// for gtk 2.10.11 and gtkmm 2.10.8
//
// Please modify the corresponding derived classes in ./src/window1.hh and./src/window1.cc
# include <libintl.h>
#ifndef _WINDOW1_GLADE_HH
# define _WINDOW1_GLADE_HH

// Since all your widgets were private I made them all public.
// To differentiate between accessable (e.g. entries, output labels)
// and unaccessible widgets (e.g. static labels, containers)
// you should use the 'visibility' property (only visible in C++ mode)


#if !defined(GLADEMM_DATA)
#define GLADEMM_DATA
#include <gtkmm/accelgroup.h>

class GlademmData
{

Glib::RefPtr<Gtk::AccelGroup> accgrp;
public:

GlademmData(Glib::RefPtr<Gtk::AccelGroup> ag) : accgrp(ag)
{
}

Glib::RefPtr<Gtk::AccelGroup> getAccelGroup()
{ return accgrp;
}
};
#endif //GLADEMM_DATA

#include <gtkmm/window.h>
#include <gtkmm/entry.h>
#include <gtkmm/button.h>
#include <gtkmm/box.h>

class window1_glade : public Gtk::Window
{

GlademmData *gmm_data;
public:
class Gtk::Window * window1;
class Gtk::Entry * textbox;
class Gtk::Button * gumb;
class Gtk::HBox * hbox1;
protected:

window1_glade();

~window1_glade();
private:
virtual void on_button1_clicked() = 0; this is error
};

#endif


so this is my code (a part of it). where shall I put my function?

[carniolus]

Anyone?

[PandaGoat]

Try making it not a virtual function.

[carniolus]

I solved the first error, but I still don't know where to put my function.
This is important for me, because I want to use the correct sintax.

[PandaGoat]

window.h


class window : Gtk::Window
{

public:
window();
~window();

private:
void on_button1_clicked();

}


window.cpp


window::window()
{
// Create window

// Attach
button1.signal_clicked().connect( sigc::ptr_fun( &on_button1_clicked() ) );
}
window::~window()
{
}

window::void on_button1_clicked()
{
cout << "Button1 was clicked! Yay!\n";
}