gtkbuilder and spinbutton

I use Glade 3 to create my interface. I have a problem with gtkspinbutton and gtkbuilder: gtkspinbutton accepts step_increment, page_increment, lower, upper but not the default value. Here an example of glade file: object class=GtkAdjustment id=adjustment220 property

Re: How to do a graphic overlay?

Only certain widgets have their own GdkWindow. GtkDrawingArea, GtkWindow and GtkEventBox do. Pretty much all others don't. I don't know whether goocanvas does or not. But if it doesn't, then you would have really been drawing on one of it's ancestors GdkWindow. According to the GooCanvas