From 56ebb4e326314495f242a7615ebf7715d0927c2e Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sun, 15 Feb 2015 18:26:03 +0000
Subject: Fix mouse wheel on Windows.

git-svn-id: http://svn.drobilla.net/lad/trunk/suil@5574 a436a847-0d15-0410-975c-d299462d15a1
---
 src/win_in_gtk2.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src')

diff --git a/src/win_in_gtk2.cpp b/src/win_in_gtk2.cpp
index e702d85..4cc19c1 100644
--- a/src/win_in_gtk2.cpp
+++ b/src/win_in_gtk2.cpp
@@ -19,6 +19,13 @@
 #include <gtk/gtk.h>
 #include <gdk/gdkwin32.h>
 
+#ifndef WM_MOUSEWHEEL
+#    define WM_MOUSEWHEEL 0x020A
+#endif
+#ifndef WM_MOUSEHWHEEL
+#    define WM_MOUSEHWHEEL 0x020E
+#endif
+
 #include "./suil_internal.h"
 
 #ifdef HAVE_LV2_1_6_0
@@ -159,6 +166,11 @@ event_filter(GdkXEvent* xevent, GdkEvent* event, gpointer data)
 		// Forward keyboard events to UI window
 		PostMessage((HWND)wrap->instance->ui_widget,
 		            msg->message, msg->wParam, msg->lParam);
+		return GDK_FILTER_REMOVE;
+	} else if (msg->message == WM_MOUSEWHEEL || msg->message == WM_MOUSEHWHEEL) {
+		PostMessage((HWND)wrap->instance->ui_widget,
+		            msg->message, msg->wParam, msg->lParam);
+		return GDK_FILTER_REMOVE;
 	}
 	return GDK_FILTER_CONTINUE;
 }
-- 
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