Re: Crash when calling Gdk::Drawable::draw_pixbuf

[Mark Roberts <gtkmm manumark de>]

Dear Falk!

> • have the following member variables (m_pixbuf, m_gc, m_dim are
> initialized and work properly, m_drawable and m_gdk_image are NULL ):
>
> Glib::RefPtr<Gdk::GC> m_gc;
> Glib::RefPtr<Gdk::Drawable> m_drawable;
> Glib::RefPtr<Gdk::Image> m_gdk_image;
> Glib::RefPtr<Gdk::Pixbuf> m_pixbuf;
> rdcnnsim::Dimension m_dim;
>
> /* rdcnnsim::Dimension
> * simple class that contains width and height as integers
> */
>
> • take the Gdk::Pixbuf of the Gtk::Image and call:
>
> m_drawable->draw_pixbuf(m_gc,
> 		        m_pixbuf,
> 		        0,0,
> 			0,0,
> 			m_dim.get_width(),
> 			m_dim.get_height(),
> 			Gdk::RGB_DITHER_NONE,
> 			0,0);

You just said that m_drawable was NULL...

> At this point I am getting an extraordinary annoying segfault when
> starting the application.

All the best,
Mark Roberts