GtkSocket won't show in a GtkFixed

I'm on Ubuntu 10.04, rootstock filesys, on a Marvell ARM CPU. The kernel is 2.6.32.9. And Gtk 2.0 (maybe 2.20?)

GtkWidget *fixed = gtk_fixed_new ();
gtk_widget_show( fixed );
socket = gtk_socket_new();
#if 1
// this line lets the code work
gtk_container_add( GTK_CONTAINER( window ), socket );
#else
// with this line, it fails to show the contents of the socket
gtk_fixed_put( GTK_FIXED( fixed ), socket, 0, 0 );
#endif
gtk_widget_show( socket );

I need to use the (non-working) gtk_fixed_put scheme, since I need to add multiple widgets to the window. I am getting a gtk critical error from the gtk_fixed_put line: assertion GTK_IS_ANCHORED (socket) failed.

Can anyone tell me why gtk_fixed_put is failing, when gtk_container_add works?

Please post your thread once and in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread should be closed because it is a duplicate of http://www.linuxquestions.org/questi...kfixed-937136/.