From 22397e0c5d1377f13dc5028aaea75ca3e540f139 Mon Sep 17 00:00:00 2001
From: Brad Hughes <bradhugh@outlook.com>
Date: Tue, 6 Dec 2016 08:55:45 -0500
Subject: [PATCH] Double-check key state before UI autorepeat. Fixes #1169

---
 src/emu/uiinput.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/emu/uiinput.cpp b/src/emu/uiinput.cpp
index 952a5b371b3..9123a6af526 100644
--- a/src/emu/uiinput.cpp
+++ b/src/emu/uiinput.cpp
@@ -263,7 +263,14 @@ g_profiler.start(PROFILER_INPUT);
 
 		/* if this is an autorepeat case, set a 1x delay and leave pressed = 1 */
 		else if (speed > 0 && (osd_ticks() + tps - m_next_repeat[code]) >= tps)
-			m_next_repeat[code] += 1 * speed * tps / 60;
+		{
+			// In the autorepeatcase, we need to double check the key is still pressed
+			// as there can be a delay between the key polling and our processing of the event
+			m_seqpressed[code] = machine().ioport().type_pressed(ioport_type(code));
+			pressed = (m_seqpressed[code] == SEQ_PRESSED_TRUE);
+			if (pressed)
+				m_next_repeat[code] += 1 * speed * tps / 60;
+		}
 
 		/* otherwise, reset pressed = 0 */
 		else