From c89c8b7419fe210fb0e2e836c0bce0ad4fce1a8b Mon Sep 17 00:00:00 2001
From: C-o-r-E <can.of.tuna@gmail.com>
Date: Thu, 28 Feb 2013 15:02:56 -0500
Subject: [PATCH] mfreerdp-server: vertical scroll input support

---
 server/Mac/mf_input.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/server/Mac/mf_input.c b/server/Mac/mf_input.c
index dd1904e1d..ab6354057 100644
--- a/server/Mac/mf_input.c
+++ b/server/Mac/mf_input.c
@@ -349,6 +349,10 @@ void mf_input_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
 {
 	float width, height;
 	
+	CGWheelCount wheelCount = 2;
+	UINT32 scroll_x = 0;
+	UINT32 scroll_y = 0;
+	
 	if (flags & PTR_FLAGS_WHEEL)
 	{
 		/*
@@ -360,6 +364,27 @@ void mf_input_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
 		 
 		 SendInput(1, &mouse_event, sizeof(INPUT));
 		 */
+		scroll_y = flags & WheelRotationMask;
+		
+		if (flags & PTR_FLAGS_WHEEL_NEGATIVE)
+		{
+			scroll_y = -(flags & WheelRotationMask) / 392;
+		}
+		else
+		{
+			scroll_y = (flags & WheelRotationMask) / 120;
+		}
+		
+		CGEventSourceRef source = CGEventSourceCreate (kCGEventSourceStateCombinedSessionState);
+		CGEventRef scroll = CGEventCreateScrollWheelEvent(source,
+								  kCGScrollEventUnitLine,
+								  wheelCount,
+								  scroll_y,
+								  scroll_x);
+		CGEventPost(kCGHIDEventTap, scroll);
+		
+		CFRelease(scroll);
+		CFRelease(source);
 	}
 	else
 	{