Re: canvasmm

[Yann Normand <ynormand mail transiciel com>]

Antonio Coralles a écrit :

Yann Normand wrote:

  

Antonio Coralles a écrit :




Thanks for your tipp ... maybe sombody knows why the follwoing code:

#include <gtkmm/window.h>
#include <gtkmm/main.h>
#include <libgnomecanvasmm/canvas.h>
#include <libgnomecanvasmm/text.h>
#include <libgnomecanvasmm/init.h>
using namespace Gtk;

class CanvasWindow : public Window
{
    public:
    CanvasWindow() : _text(*_canvas.root(), 0, 0, "Hey")
    {
        set_size_request(400, 400);
        add(_canvas);
        show_all_children();
    }
    virtual ~CanvasWindow() {}

    private:
    Gnome::Canvas::Canvas _canvas;
    Gnome::Canvas::Text _text;
   
};

int main(int argc, char **argv)
{
    Gnome::Canvas::init();
    Main kit(argc, argv);
    CanvasWindow win;
    Main::run(win);
}

leads directly to a segfault (i'm using canvasmm-2.6.1). gdb says

Program received signal SIGSEGV, Segmentation fault.
0xb7fb0fa2 in Gnome::Canvas::Item::item_construct () from
/usr/lib/libgnomecanvasmm-2.6.so.1
(gdb) back
#0  0xb7fb0fa2 in Gnome::Canvas::Item::item_construct () from
/usr/lib/libgnomecanvasmm-2.6.so.1
#1  0xb7fbacd3 in Gnome::Canvas::Text::Text () from
/usr/lib/libgnomecanvasmm-2.6.so.1
#2  0x0804beaf in CanvasWindow::CanvasWindow ()
#3  0x0804bd04 in main ()

Thanks,
Antonio

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I tried your source and it runs fine. I use the version  2.10.0 of
canvasmm


    



Hmm, that's strange - i've now installed canvasmm-2.10.0 and i get
exactly the same error ... As i'm using gentoo linux, this may be some
distribution specific bug.
Antonio

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What is the command you run to compile your sources ?
I suggest you upgrade all your gtk libraries to their last stable
version and try again.
By the way, I'm using  g++  3.3.5


-- 
Yann Normand
Sogeti-Transiciel


    

I use g++ (GCC) 3.3.5-20050130, gtk+-2.6.7, gtkmm-2.4.11 and
libgnomecanvas-2.10.0. To compile this simple app i used
g++ canvas1.cc `pkg-config gtkmm-2.4 libgnomecanvasmm-2.6 --cflags
--libs` -o canvas -g
Antonio


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I have Gtkmm version 2.6.1 . Try to upgrade this one.

-- 
Yann Normand
Sogeti-Transiciel