[gtkmm] Failed to wrap type of 'GdkPixbuf' ???

[Avery Scott <avery scott web de>]

Dear all,

I am using Gtkmm on a nearly daily basis and I learned to like it a lot.
However I experience problems with the behavior of the following code:


#include <gtkmm/main.h>
#include <gtkmm/window.h>
#include <gtkmm/box.h>
#include <gtkmm/separator.h>
#include <gtkmm/button.h>
#include <gdkmm/pixbufloader.h>
#include <gtkmm/image.h>

class Window : public Gtk::Window
{
public:
	Window(const unsigned char* img, size_t img_size) : Gtk::Window()
	{
		set_title("Image");
		set_resizable(false);

		Gtk::VBox* box = Gtk::manage(new class Gtk::VBox());
		box->set_spacing(3);
		box->set_border_width(1);

		Glib::RefPtr<Gdk::PixbufLoader> image_loader =
Gdk::PixbufLoader::create();
		image_loader->write(img, img_size);
		image_loader->close();

		Gtk::Image* image    = Gtk::manage(new class
Gtk::Image(image_loader->get_pixbuf()));
		Gtk::HSeparator* sep = Gtk::manage(new class Gtk::HSeparator());
		Gtk::Button* btn     = Gtk::manage(new class
Gtk::Button(Gtk::StockID("gtk-quit")));

		box->pack_start(*image, Gtk::PACK_SHRINK, 0);
		box->pack_start(*sep, Gtk::PACK_SHRINK, 0);
		box->pack_start(*btn, Gtk::PACK_SHRINK, 0);

		add(*box);

		btn->signal_clicked().connect(SigC::slot(*this, &Gtk::Window::hide));
	}
	
	static void show_image(const unsigned char* img, size_t img_size)
	{
		Gtk::Main kit(0, NULL);
		Window w(img, img_size);
		w.show_all();
		Gtk::Main::run(w);
	}
};


The problem is that although everything compiles and runs fine for the
first time, I get the following error messages during a second call to
Window::show_image():


(<unknown>:25648): glibmm-CRITICAL **: file wrap.cc: line 51
(Glib::ObjectBase* <unnamed>::create_new_wrapper(GObject*)): assertion
`wrap_func_table != 0' failed

(<unknown>:25648): glibmm-WARNING **: failed to wrap type of 'GdkPixbuf'


Could someone on this list please tell me what I am doing wrong?

Thanks in advance,
Avery Scott.