[gimp] Use gtk_widget_get_window() instead of widget->window

[Michael Natterer <mitch src gnome org>]

commit 639194aac52e9cf2d6640b69b892d81906d8d2c1
Author: Michael Natterer <mitch gimp org>
Date:   Fri Oct 9 11:09:41 2009 +0200

    Use gtk_widget_get_window() instead of widget->window

 app/dialogs/resolution-calibrate-dialog.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/dialogs/resolution-calibrate-dialog.c b/app/dialogs/resolution-calibrate-dialog.c
index 6e4d481..cbaf418 100644
--- a/app/dialogs/resolution-calibrate-dialog.c
+++ b/app/dialogs/resolution-calibrate-dialog.c
@@ -84,7 +84,7 @@ resolution_calibrate_dialog (GtkWidget *resolution_entry,
 
   screen = gtk_widget_get_screen (dialog);
   monitor = gdk_screen_get_monitor_at_window (screen,
-                                              resolution_entry->window);
+                                              gtk_widget_get_window (resolution_entry));
   gdk_screen_get_monitor_geometry (screen, monitor, &rect);
 
   ruler_width  = rect.width  - 300 - (rect.width  % 100);