game.input.gtk: throw in case no display is found

2018-02-04 23:24:04 +01:00 · 2018-02-04 23:24:04 +01:00 · 0763be780f
parent 5edc976941
commit 0763be780f
1 changed files with 3 additions and 1 deletions
--- a/basis/game/input/gtk/gtk.factor
+++ b/basis/game/input/gtk/gtk.factor
@ -13,7 +13,9 @@ LIBRARY: gdk
 FUNCTION: Display* gdk_x11_display_get_xdisplay ( GdkDisplay* display )

 : get-dpy ( -- dpy )
-    gdk_display_get_default gdk_x11_display_get_xdisplay ;
+    gdk_display_get_default [ gdk_x11_display_get_xdisplay ] [
+        "No default display." throw
+    ] if* ;

 M: gtk-game-input-backend (open-game-input)
    reset-mouse ;