Making object/widget out of a GdkWindow

[Jonas Aaberg <cja gmx de>]

Hi,

I'm trying to write a pager(for enlightenment) in gtk+.

I want to register events such as GDK_STRUCTURE_MASK, 
GDK_PROPERTY_CHANGE_MASK and GDK_SUBSTRUCTURE_MASK that happends
in the root window and its children.

I managed to do that using only GDK functions, (See code at the
end of the mail.) but I would like to be able to use functions
like:
        g_signal_connect(G_OBJECT(root_win), "substructure_event",
                        G_CALLBACK(substructure_event_func),NULL);

And the ofcourse use gtk_main(), instead of having a loop with
gdk_events_pending() as in the attached code.

So my question, how do I create an object/widget out of a 
GdkWindow that I can connect signals to?

Please CC me, because I'm not on the mailing list.

Thanks!
 Jonas

--


#include <stdio.h>
#include <gtk/gtk.h>
#include <gdk/gdkx.h>

int main(int argc, char **argv)
{
    GdkWindow *root_win;
    GdkEvent *event;

    gtk_init(&argc, &argv);


    root_win =
    gdk_window_foreign_new((GdkNativeWindow)gdk_x11_get_default_root_xwindow());

    gdk_window_set_events(root_win,
    GDK_EXPOSURE_MASK|GDK_STRUCTURE_MASK|GDK_PROPERTY_CHANGE_MASK|
    GDK_SUBSTRUCTURE_MASK);
    
  
    while(1){
        while(gdk_events_pending()){
            event = gdk_event_get();
            if(event){
                switch(event->type){
                case GDK_PROPERTY_NOTIFY:
                    printf("property\n");
                    break;
                case GDK_MAP:
                    printf("map\n");
                    break;
                case GDK_UNMAP:
                    printf("unmap\n");
                    break;
                case GDK_NOTHING:
                    break;
                default:
                    printf("unknown! (%d)\n", event->type);
                    break;
                }
            }
        }
        
    }

    return 0;
}