[ekiga] Fix crash at zoom out in call window

[Eugen Dedu <ededu src gnome org>]

commit 1dc62f85bbce45ac1082a2a7e165af52fb7e43e2
Author: Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>
Date:   Sat Jun 30 16:09:59 2012 +0200

    Fix crash at zoom out in call window
    
    The change in this commit was forgotten by commit d2a12b3f.

 lib/engine/gui/gtk-frontend/call-window.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/engine/gui/gtk-frontend/call-window.cpp b/lib/engine/gui/gtk-frontend/call-window.cpp
index 89b377f..3b3b56e 100644
--- a/lib/engine/gui/gtk-frontend/call-window.cpp
+++ b/lib/engine/gui/gtk-frontend/call-window.cpp
@@ -522,7 +522,7 @@ zoom_out_changed_cb (G_GNUC_UNUSED GtkWidget *widget,
   Ekiga::DisplayInfo display_info;
   ekiga_call_window_set_video_size (EKIGA_CALL_WINDOW (data), GM_CIF_WIDTH, GM_CIF_HEIGHT);
 
-  display_info.zoom = gm_conf_get_int ((char *) data);
+  display_info.zoom = gm_conf_get_int (VIDEO_DISPLAY_KEY "zoom");
 
   if (display_info.zoom  > 50)
     display_info.zoom  = (unsigned int) (display_info.zoom  / 2);