From ed516f05c2fb6d054e20cb6ffd0e343f5603f74f Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Mon, 2 Mar 2020 18:56:09 +0900
Subject: [PATCH] Forward any unhandled scroll events to volume overlay

---
 osu.Game/OsuGame.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/osu.Game/OsuGame.cs b/osu.Game/OsuGame.cs
index a73d5b57c4..5781a7fbc4 100644
--- a/osu.Game/OsuGame.cs
+++ b/osu.Game/OsuGame.cs
@@ -25,6 +25,7 @@ using osu.Framework.Extensions.IEnumerableExtensions;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Input;
 using osu.Framework.Input.Bindings;
+using osu.Framework.Input.Events;
 using osu.Framework.Platform;
 using osu.Framework.Threading;
 using osu.Game.Beatmaps;
@@ -805,6 +806,13 @@ namespace osu.Game
             return d;
         }
 
+        protected override bool OnScroll(ScrollEvent e)
+        {
+            // forward any unhandled mouse scroll events to the volume control.
+            volume.Adjust(GlobalAction.IncreaseVolume, e.ScrollDelta.Y, e.IsPrecise);
+            return true;
+        }
+
         public bool OnPressed(GlobalAction action)
         {
             if (introScreen == null) return false;