CYGWIN and GTK

["carmelo gallucci" <cgallucci inwind it>]

I'm doing porting f my gtk application on win2000/Xp using CYGWIN. My
application also use SDL and i want to enable SDL hacking to encapsulate
it on a gtk window. My gtk application run pefectly. I can show widget
and use it. My problem is that i cannot get this code to work (it work
perfectly under linux):

sprintf(SDL_windowhack,"SDL_WINDOWID=%ld",GDK_WINDOW_XWINDOW(Gtk::Widget
::gobj()->window));

I cannot get WINDOWID.
		
When i use the macro GDK_WINDOW_XWINDOW i get the following error:

(process:1928): GLib-GObject-CRITICAL **:
/instsoft/gnome/platform/glib-2.6.6/go
bject/gtype.c:2254: initialization assertion failed, use g_type_init()
prior to this function

(process:1928): GLib-GObject-CRITICAL **:
/instsoft/gnome/platform/glib-2.6.6/go
bject/gtype.c:2254: initialization assertion failed, use g_type_init()
prior to this function

(process:1928): GLib-GObject-CRITICAL **:
/instsoft/gnome/platform/glib-2.6.6/go
bject/gtype.c:2254: initialization assertion failed, use g_type_init()
prior to this function

(process:1928): GLib-GObject-CRITICAL **:
/instsoft/gnome/platform/glib-2.6.6/go
bject/gtype.c:2254: initialization assertion failed, use g_type_init()
prior to this function

(process:1928): Gdk-WARNING **:
/instsoft/gnome/platform/gtk+-2.6.10/gdk/x11/gdk
drawable-x11.c:971 drawable is not a pixmap or window

What's the problem? Anyone know where the problem is?

Thanks.

Carmelo Gallucci