Custom widget painting with GtkStyle

[Sebastian PajÄk <spconv+m gmail com>]

Hi

I'm trying to create a shape for my custom widget using GtkStyle
(gtk_paint func. family). For a start I want a shape like a button has
(shadow + relief). This is my code for expose event:


static int
clv_expose(GtkWidget *widget, GdkEventExpose *event) // clv is a
subclass of GtkConainer
{
    int x = widget->allocation.x;
    int y = widget->allocation.y;
    int width = widget->allocation.width;
    int height = widget->allocation.height;

    gtk_paint_box(widget->style, widget->window,
                  GTK_STATE_NORMAL,
                  GTK_SHADOW_IN, &event->area,
                  widget, "button",
                  x+4, y+4, width-8, height-8);

    std::printf("EXPOSE");
    return FALSE;
}


clv_expose is connected and is called. Unfortunately it doesn't work.
Only empty, flat window is showing, no shadow like in a button. Do you
know what can be wrong? Is GtkConainer good for sublassing in this
situation?

I cannot find any info on gtk/gdk drawing using google (only cairo).
Gtk API reference is very poor abou it. Some hints, simple exmples or
howtos will be helpful for a GTK+ beginner like me :).

Thanks in advance
Sebastian