From c5f51d1e5a29bc6fec7528bd4764e2a2971517c3 Mon Sep 17 00:00:00 2001
From: Colby Klein <shakesoda@gmail.com>
Date: Wed, 24 May 2017 03:37:25 -0700
Subject: [PATCH] Call DwmFlush on VSync (might help with stuttering). Note:
 Requires Windows Vista or later.

---
 src/archutils/Win32/GraphicsWindow.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/archutils/Win32/GraphicsWindow.cpp b/src/archutils/Win32/GraphicsWindow.cpp
index f2eb90c54e..5722701ed2 100644
--- a/src/archutils/Win32/GraphicsWindow.cpp
+++ b/src/archutils/Win32/GraphicsWindow.cpp
@@ -12,6 +12,8 @@
 #include "archutils/Win32/WindowIcon.h"
 #include "archutils/Win32/GetFileInformation.h"
 #include "CommandLineActions.h"
+#include <dwmapi.h>
+#pragma comment(lib, "dwmapi.lib")
 
 #include <set>
 
@@ -495,6 +497,11 @@ void GraphicsWindow::Update()
 
 	HOOKS->SetHasFocus( g_bHasFocus );
 
+	if (g_CurrentParams.vsync)
+	{
+		DwmFlush();
+	}
+
 	if( g_bResolutionChanged && DISPLAY != NULL )
 	{
 		//LOG->Warn( "Changing resolution" );