From 6c9b3b5d91744380d1123b71f6a7d4763f7bc3af Mon Sep 17 00:00:00 2001
From: Noah Ehrman <giantnoah@gmail.com>
Date: Sun, 16 Jun 2024 04:53:28 -0400
Subject: [PATCH] Pressing Mouse1 and Mouse2 no longer crashes on Linux. Fixes
 #1061

---
 Source/Core/Actions/ActionManager.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Source/Core/Actions/ActionManager.cs b/Source/Core/Actions/ActionManager.cs
index d5076351..4610cba4 100755
--- a/Source/Core/Actions/ActionManager.cs
+++ b/Source/Core/Actions/ActionManager.cs
@@ -506,6 +506,10 @@ namespace CodeImp.DoomBuilder.Actions
             // Update pressed keys
             if (!repeat) pressedkeys.Add(strippedkey);
 
+			if (key == 0) {
+				return false;
+			}
+
             // Add action to active list
             Action[] acts = GetActionsByKey(key);
             bool absorbed = acts.Length > 0;