From 679106e8b027b74f8dc1d57c38bafc7c0794c3c7 Mon Sep 17 00:00:00 2001
From: Recursive G <g.recursive@gmail.com>
Date: Tue, 5 Oct 2021 22:30:52 -0500
Subject: [PATCH] Properly discard filtered events by XFilterEvent()

According to https://www.x.org/releases/current/doc/man/man3/XFilterEvent.3.xhtml,
an event should be discarded if XFilterEvent returns `True`. Fix #1794.
---
 src/x11_window.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/x11_window.c b/src/x11_window.c
index 297b975d..bfaa21e8 100644
--- a/src/x11_window.c
+++ b/src/x11_window.c
@@ -1163,6 +1163,10 @@ static void processEvent(XEvent *event)
         keycode = event->xkey.keycode;
 
     filtered = XFilterEvent(event, None);
+    if (filtered)
+    {
+        return;
+    }
 
     if (_glfw.x11.randr.available)
     {