GtkSharp/gtk/Notebook.custom

// Notebook.custom - customization for Gtk.Notebook
//
// Authors: Xavier Amado (xavier@blackbloodstudios.com)
//          Mike Kestner (mkestner@ximian.com)
//
// <c> 2004 Novel, Inc.

public Widget CurrentPageWidget {
        get {
                return GetNthPage (CurrentPage);
        }
}       

[DllImport("libgtk-win32-2.0-0.dll")]
static extern int gtk_notebook_page_num (IntPtr handle, IntPtr child);

public int PageNum (Widget child)
{
	return gtk_notebook_page_num (Handle, child.Handle);
}