From 37a220634713344c4a1fe4453fc4f36dc0a30148 Mon Sep 17 00:00:00 2001
From: James Laird-Wah <james@laird-wah.net>
Date: Mon, 5 Dec 2016 10:40:31 +1100
Subject: [PATCH] Support horizontal scroll with mouse wheel

---
 constants.h | 2 ++
 xkeymap.c   | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/constants.h b/constants.h
index b60aae4..85e1cec 100644
--- a/constants.h
+++ b/constants.h
@@ -245,6 +245,8 @@ enum RDP_INPUT_DEVICE
 #define MOUSE_FLAG_BUTTON3      0x4000
 #define MOUSE_FLAG_BUTTON4      0x0280
 #define MOUSE_FLAG_BUTTON5      0x0380
+#define MOUSE_FLAG_BUTTON6      0x0580
+#define MOUSE_FLAG_BUTTON7      0x0480
 #define MOUSE_FLAG_DOWN         0x8000
 
 /* Raster operation masks */
diff --git a/xkeymap.c b/xkeymap.c
index 240e31d..c68dead 100644
--- a/xkeymap.c
+++ b/xkeymap.c
@@ -889,6 +889,10 @@ xkeymap_translate_button(unsigned int button)
 			return MOUSE_FLAG_BUTTON4;
 		case Button5:	/* wheel down */
 			return MOUSE_FLAG_BUTTON5;
+		case 6:			/* wheel left */
+			return MOUSE_FLAG_BUTTON6;
+		case 7:			/* wheel right */
+			return MOUSE_FLAG_BUTTON7;
 	}
 
 	return 0;