From 6530886d3137cb8072be8f8b4557a277ff1c6183 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sat, 12 Oct 2019 17:27:05 +0200
Subject: [PATCH] Call XFlush() after simulating key press in wxGTK

This makes simulating keys much more reliable, previously they were just
completely lost (i.e. never resulted in key-press-event signal being
generated by GTK) sometimes.
---
 src/unix/uiactionx11.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/unix/uiactionx11.cpp b/src/unix/uiactionx11.cpp
index 96fe8c0629..4722aff96b 100644
--- a/src/unix/uiactionx11.cpp
+++ b/src/unix/uiactionx11.cpp
@@ -341,7 +341,12 @@ bool wxUIActionSimulatorX11Impl::DoKey(int keycode, int modifiers, bool isDown)
     if ( xkeycode == NoSymbol )
         return false;
 
-    return DoX11Key(xkeycode, modifiers, isDown);
+    if ( !DoX11Key(xkeycode, modifiers, isDown) )
+        return false;
+
+    XFlush(m_display);
+
+    return true;
 }
 
 wxUIActionSimulator::wxUIActionSimulator()