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-rw-r--r--src/rail_gui.cpp12
1 files changed, 10 insertions, 2 deletions
diff --git a/src/rail_gui.cpp b/src/rail_gui.cpp
index 861a41f3c..bbab6bfda 100644
--- a/src/rail_gui.cpp
+++ b/src/rail_gui.cpp
@@ -1328,11 +1328,19 @@ static void SignalBuildWndProc(Window *w, WindowEvent *e)
break;
case BSW_DRAG_SIGNALS_DENSITY_DECREASE:
- if (_patches.drag_signals_density > 1) _patches.drag_signals_density--;
+ if (_patches.drag_signals_density > 1) {
+ _patches.drag_signals_density--;
+ const Window *w = FindWindowById(WC_GAME_OPTIONS, 0);
+ if (w != NULL) SetWindowDirty(w);
+ }
break;
case BSW_DRAG_SIGNALS_DENSITY_INCREASE:
- if (_patches.drag_signals_density < 20) _patches.drag_signals_density++;
+ if (_patches.drag_signals_density < 20) {
+ _patches.drag_signals_density++;
+ const Window *w = FindWindowById(WC_GAME_OPTIONS, 0);
+ if (w != NULL) SetWindowDirty(w);
+ }
break;
default: break;