GtkSharp/gtk/FileChooserDialog.custom

		[DllImport("libgtk-win32-2.0-0.dll")]
		static extern IntPtr gtk_file_chooser_dialog_new(string title, IntPtr parent, int action, IntPtr nil);

		public FileChooserDialog (string title, Window parent, FileChooserAction action)
		{
			Raw = gtk_file_chooser_dialog_new (title, parent == null ? IntPtr.Zero : parent.Handle, (int)action, IntPtr.Zero);
		}
		
		[DllImport("libgtk-win32-2.0-0.dll")]
		static extern IntPtr gtk_file_chooser_dialog_new_with_backend(string title, IntPtr parent, int action, string backend, IntPtr nil);
		
		public FileChooserDialog (string title, Window parent, FileChooserAction action, string backend)
		{
			Raw = gtk_file_chooser_dialog_new_with_backend (title, parent == null ? IntPtr.Zero : parent.Handle, (int)action, backend, IntPtr.Zero);
		}

		[DllImport ("libgtk-win32-2.0-0.dll")]
		static extern IntPtr gtk_file_chooser_get_filenames (IntPtr raw);

		[DllImport("libglib-2.0-0.dll")]
		static extern void g_strfreev (IntPtr handle);
		
		public string[] Filenames {
			get {
				IntPtr strv = gtk_file_chooser_get_filenames (Handle);
				System.Collections.ArrayList result = new System.Collections.ArrayList ();
				int i = 0;
				IntPtr strptr = Marshal.ReadIntPtr (strv, IntPtr.Size * i++);
				while (strptr != IntPtr.Zero) {
					result.Add (Marshal.PtrToStringAnsi (strptr));
					strptr = Marshal.ReadIntPtr (strv, IntPtr.Size * i++);
				}
				g_strfreev (strv);
				return result.ToArray (typeof (string)) as string[];
			}
		}