From cd3fc3075a43dbde326720964e29aa28c6be4a17 Mon Sep 17 00:00:00 2001
From: Tomaka17 <pierre.krieger1708@gmail.com>
Date: Tue, 12 Aug 2014 21:21:06 +0200
Subject: Fix #22 Thanks to @Anthiste

---
 src/win32/ffi.rs | 3 +++
 src/win32/mod.rs | 2 ++
 2 files changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/win32/ffi.rs b/src/win32/ffi.rs
index 3ff0982..4480155 100644
--- a/src/win32/ffi.rs
+++ b/src/win32/ffi.rs
@@ -718,6 +718,9 @@ extern "system" {
     // http://msdn.microsoft.com/en-us/library/windows/desktop/ms633519(v=vs.85).aspx
     pub fn GetWindowRect(hWnd: HWND, lpRect: *mut RECT) -> BOOL;
 
+    //
+    pub fn glFlush();
+
     // 
     pub fn glViewport(x: libc::c_int, y: libc::c_int, w: libc::c_int, h: libc::c_int);
 
diff --git a/src/win32/mod.rs b/src/win32/mod.rs
index e3920a8..d8425d2 100644
--- a/src/win32/mod.rs
+++ b/src/win32/mod.rs
@@ -191,6 +191,8 @@ impl Window {
     /// See the docs if the crate root file.
     pub fn swap_buffers(&self) {
         unsafe {
+            ffi::glFlush();
+
             if ffi::SwapBuffers(self.hdc) == 0 {
                 use std::os;
                 fail!("{}", os::error_string(os::errno()));
-- 
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