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John: As so often happens... when I ran gdb again and looked more closely at my code with the subject line call, I found that the previously encountered segmentation fault and bad_alloc error message did not come from that call. It comes from subsequent code that tries to use the Cairo::RefPtr<Cairo::Pixbuf> that is returned by the call. The call to "create" itself only generates (myprog:480): glibmm-CRITICAL **: Glib::Interface::Interface(const Glib::Interface_Class&): assertion `gobject_ != 0' failed (myprog:480): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed (myprog:480): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed I am still struggling to figure out how to get the debugger to step into the glibmm library code. jim.... |