Background of Drawarea (in Viewport)

["olivier_martin" <olivier_martin laposte net>]

Hi,

I try to find what is the problems but I don't find ...
I would like to have a white background in my Drawarea widget
but i don't manage ...

That is my source code :

MyComponent::MyComponent() {
        set_events(Gdk::EXPOSURE_MASK | Gdk::BUTTON_PRESS_MASK
| Gdk::BUTTON_RELEASE_MASK | Gdk::POINTER_MOTION_MASK);
	area.set_size_request(800,800);
	add(area);

        Glib::RefPtr<Gdk::Window> window = area.get_window();
	window->set_background(Gdk::Color("white"));
	window->clear();
}


MyComponent inherent Gtk::Viewport
area = Gtk::Drawarea

This code through a SEGFAULT on the line
"window->set_background(Gdk::Color("white"));".

Thanks in advance

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