[gnome-klotski/arnaudb/wip/gtk4: 22/42] Replace GdkScreen by GdkDisplay.

[Arnaud B. <arnaudb src gnome org>]

commit bbbe878ab1fc0164aab3af052300a520e961a22a
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Thu Mar 5 18:43:20 2020 +0100

    Replace GdkScreen by GdkDisplay.

 src/klotski-window.vala | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/klotski-window.vala b/src/klotski-window.vala
index 0b6c9bf..2c17460 100644
--- a/src/klotski-window.vala
+++ b/src/klotski-window.vala
@@ -529,9 +529,9 @@ private class KlotskiWindow : ApplicationWindow
     {
         CssProvider css_provider = new CssProvider ();
         css_provider.load_from_resource ("/org/gnome/Klotski/ui/klotski.css");
-        Gdk.Screen? gdk_screen = Gdk.Screen.get_default ();
-        if (gdk_screen != null) // else..?
-            StyleContext.add_provider_for_screen ((!) gdk_screen, css_provider, 
STYLE_PROVIDER_PRIORITY_APPLICATION);
+        Gdk.Display? gdk_display = Gdk.Display.get_default ();
+        if (gdk_display != null) // else..?
+            StyleContext.add_provider_for_display ((!) gdk_display, css_provider, 
STYLE_PROVIDER_PRIORITY_APPLICATION);
 
         settings = new GLib.Settings ("org.gnome.Klotski");
         set_default_size (settings.get_int ("window-width"), settings.get_int ("window-height"));