Hi,
You also seem to be using item before you've declared it:
> item->signal_activate().connect(sigc::bind(sigc::mem_fun(*this,
> &window::on_menu_posission),Gtk::POS_BOTTOM));
> menu1.append(*item);
>
> item=Gtk::manage(new Gtk::MenuItem("Virsutinis"));
Also, have you looked in the book?
http://library.gnome.org/devel/gtkmm-tutorial/unstable/chapter-menus-and-toolbars.html.en
Ian.
________________________________
From: Yann LEYDIER <[email protected]>
To: [email protected]
Sent: Sat, 12 February, 2011 9:49:51 AM
Subject: Re: gtk_box_pack: assertion `child->parent == NULL
As menus can popup, I would expect them to be attached to some kind of
window and therefore to have a parent, thus the failed assertion…
Maybe you could try to simulate a menu with buttons (calling
but.set_relief(Gtk::RELIEF_NONE)) or a treeview (calling
tv.set_hover_selection(true)) ?
On 10/02/11 19:27, cppgangster wrote:
>
> Hi I am trying to put Gtk::menu to Gtk:Vbox container, when I run it, I get
> exception throw with msg "(main:14565): Gtk-CRITICAL **: gtk_box_pack:
> assertion `child->parent == NULL' failed"
> And here is my code:
> /*
> * File: newfile.hpp
> * Author: cppguy
> *
> * Created on 10 February 2011, 06:44
> */
>
> #ifndef NEWFILE_HPP
> #define NEWFILE_HPP
> #include "gtkmm-2.4/gtkmm/window.h"
> #include<gtkmm-2.4/gtkmm/menu.h>
> #include<gtkmm-2.4/gtkmm/label.h>
> #include "gtkmm/scale.h"
> #include "gtkmm/box.h"
>
> class window:public Gtk::Window{
> private:
> Gtk::Menu menu1;
> Gtk::Label label1;
> Gtk::HScale hscale1;
> Gtk::HBox hbox1;
> Gtk::VBox vbox1;
> public:
> window();
> ~window();
> void on_menu_posission(Gtk::PositionType);
>
> };
>
>
>
> #endif /* NEWFILE_HPP */
>
> #include<gtkmm-2.4/gtkmm/action.h>
> #include<gtkmm-2.4/gtkmm/adjustment.h>
>
> #include "newfile.hpp"
> #include "gtkmm/menuitem.h"
>
> window::window():
> label1("Pasirinkite is saraso: "),
> hscale1(0.0,10.0,0.5),
> hbox1(false,5),
> vbox1(false,5)
> {
> set_title("Menu");
> Gtk::MenuItem* item=Gtk::manage(new Gtk::MenuItem("Apatinis"));
> item->signal_activate().connect(sigc::bind(sigc::mem_fun(*this,
> &window::on_menu_posission),Gtk::POS_BOTTOM));
> menu1.append(*item);
>
> item=Gtk::manage(new Gtk::MenuItem("Virsutinis"));
> item->signal_activate().connect(sigc::bind(sigc::mem_fun(*this,
> &window::on_menu_posission),Gtk::POS_TOP));
> menu1.append(*item);
>
> add(hbox1);
>
> hbox1.set_border_width(10);
> vbox1.set_border_width(5);
> hbox1.pack_start(vbox1);
> vbox1.pack_start(label1);
> vbox1.pack_start(hscale1);
> hbox1.pack_start(menu1);
>
>
> show_all_children();
> }
> window::~window(){}
> void window::on_menu_posission(Gtk::PositionType pos){
> hscale1.set_value_pos(pos);
> }
> /*
> * File: main.cpp
> * Author: cppguy
> *
> * Created on 10 February 2011, 06:40
> */
>
> #include<cstdlib>
> #include "gtkmm/main.h"
> #include "newfile.hpp"
>
> using namespace std;
>
> /*
> *
> */
> int main(int argc, char** argv) {
> Gtk::Main m(argc,argv);
> window win;
> Gtk::Main::run(win);
>
> return 0;
> }
>
>
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