From 2195c9ec6a2e5cf1b633817c9e9aec6f9f730b75 Mon Sep 17 00:00:00 2001
From: trustable-code <krauter.simon@arcor.de>
Date: Thu, 5 Apr 2018 21:35:55 +0200
Subject: Windows: Allow flicker-Free drawing

---
 src/nigui/private/windows/platform_impl.nim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/nigui/private/windows/platform_impl.nim b/src/nigui/private/windows/platform_impl.nim
index 052b482..3c7bc9f 100755
--- a/src/nigui/private/windows/platform_impl.nim
+++ b/src/nigui/private/windows/platform_impl.nim
@@ -1108,8 +1108,8 @@ proc pCustomControlWndProc(hWnd: pointer, uMsg: int32, wParam, lParam: pointer):
   of WM_MOUSEWHEEL:
     let scrolled = wParam.hiWord div 120
     echo "wheel: " & $scrolled
-  # of WM_ERASEBKGND: # no effect
-    # return false
+  of WM_ERASEBKGND:
+    return cast[pointer](true) # Allow flicker-Free drawing
   of WM_SETFOCUS:
     # echo "control WM_SETFOCUS"
     discard
-- 
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