[gtkmm] Newbie problem with Gtk::Notebook

["Chun Wah, Leung (Ah Wah)" <egg_hk yahoo com>]

I got a weird runtime error that I couldnt find out
why (Segementation fault). I tried to comment out some
of the lines in notebook section and the program works
again. Here is the code after commented out some lines
:


# myaccounts_mainwindow.h
#ifndef __MYACCOUNTS_MAINWINDOW_H__
#define __MYACCOUNTS_MAINWINDOW_H__

#include <gtkmm/window.h>
#include <gtkmm/box.h>
#include <gtkmm/menubar.h>
#include <gtkmm/menu.h>
#include <gtkmm/notebook.h>

class MainWindow: public Gtk::Window
{
public:
	MainWindow();
	virtual ~MainWindow();
	
protected:
	// Child Widgets
	Gtk::VBox m_VBox1; //main container
	Gtk::MenuBar m_MenuBar;
	Gtk::Menu m_Menu_Main, m_Menu_Module, m_Menu_Help;
	Gtk::Notebook m_Notebook;
//	Gtk::VBox m_NBVBox1, m_NBVBox2, m_NBVBox3,
m_NBVBox4, m_NBVBox5; // containers inside notebook
pages

	// Signal handler
	virtual void on_m_Menu_Main_Connect_activate();
	virtual void on_m_Menu_Main_Disconnect_activate();
	virtual void on_m_Menu_Main_Quit_activate();
	virtual void on_m_Menu_others();
	
private:
	void create_menuitems();
};

#endif // __MYACCOUNTS_MAINWINDOW_H__


# myaccounts_mainwindow.cpp

#include <gtkmm/stock.h>
#include "myaccounts_mainwindow.h"

MainWindow::MainWindow()
{
	//Window's property
	set_title("MyAccounts");
	set_default_size(400, 200);
	
	add(m_VBox1);

	create_menuitems();	

	//Add the menus to the MenuBar:

m_MenuBar.items().push_back(Gtk::Menu_Helpers::MenuElem("_Main",
m_Menu_Main));

m_MenuBar.items().push_back(Gtk::Menu_Helpers::MenuElem("M_odule",
m_Menu_Module));

m_MenuBar.items().push_back(Gtk::Menu_Helpers::MenuElem("_Help",
m_Menu_Help));
	//Add the MenuBar to the window:
	m_VBox1.pack_start(m_MenuBar, Gtk::PACK_SHRINK);
	
	//Notebook
	m_Notebook.set_border_width(5);
//	m_Notebook.append_page(m_NBVBox1, "Main");
//	m_Notebook.append_page(m_NBVBox2, "General
Ledger");
/*	m_Notebook.append_page(m_NBVBox3, "Sales Ledger");
	m_Notebook.append_page(m_NBVBox4, "Purchases
Ledger");
	m_Notebook.append_page(m_NBVBox5, "Inventories
Ledger");
*/	
	m_VBox1.pack_start(m_Notebook);
	
	show_all_children();
}

MainWindow::~MainWindow()
{
}

void MainWindow::create_menuitems()
{
	//Menus:
	//Main menu:
	{
		Gtk::Menu::MenuList& menulist = m_Menu_Main.items();
	
menulist.push_back(Gtk::Menu_Helpers::MenuElem("_Connect",
Gtk::Menu::AccelKey("<control>c"),
				SigC::slot(*this,
&MainWindow::on_m_Menu_Main_Connect_activate)));
	
menulist.push_back(Gtk::Menu_Helpers::MenuElem("_Disconnect",
 Gtk::Menu::AccelKey("<control>d"),
				SigC::slot(*this,
&MainWindow::on_m_Menu_Main_Disconnect_activate)));
	
menulist.push_back(Gtk::Menu_Helpers::SeparatorElem());
	
menulist.push_back(Gtk::Menu_Helpers::StockMenuElem(Gtk::Stock::QUIT,
				SigC::slot(*this,
&MainWindow::on_m_Menu_Main_Quit_activate)));
	}
	//Module menu:
	{
		Gtk::Menu::MenuList& menulist =
m_Menu_Module.items();
	
menulist.push_back(Gtk::Menu_Helpers::MenuElem("General
Ledger",
				SigC::slot(*this,
&MainWindow::on_m_Menu_others)));
	
menulist.push_back(Gtk::Menu_Helpers::MenuElem("Sales
Ledger",
				SigC::slot(*this,
&MainWindow::on_m_Menu_others)));
	
menulist.push_back(Gtk::Menu_Helpers::MenuElem("Purchases
Ledger",
				SigC::slot(*this,
&MainWindow::on_m_Menu_others)));
	
menulist.push_back(Gtk::Menu_Helpers::MenuElem("Inventories
Ledger",
				SigC::slot(*this,
&MainWindow::on_m_Menu_others)));
	}
	//Help menu: (exercise stock items)
	{
		Gtk::Menu::MenuList& menulist = m_Menu_Help.items();
	
menulist.push_back(Gtk::Menu_Helpers::MenuElem("About...",
				SigC::slot(*this,
&MainWindow::on_m_Menu_others)));
	}
}

void MainWindow::on_m_Menu_Main_Connect_activate()
{

}

void MainWindow::on_m_Menu_Main_Disconnect_activate()
{

}

void MainWindow::on_m_Menu_Main_Quit_activate()
{
	hide();
}
void MainWindow::on_m_Menu_others()
{

}


=====
Your capital > Assets - Liabilities

Chun Wah, Leung 
(Ah Wah / AHua)


	
		
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