From b6d00b3b1549011db3e5746ea49cb5e3ab5511ce Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Tue, 5 Nov 2013 14:39:13 +0000
Subject: [PATCH] Don't use animations when showing non-visible windows.

This is useless anyhow but also results in artefacts when the window becomes
visible later.

Closes #15643.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75130 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/msw/window.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/msw/window.cpp b/src/msw/window.cpp
index 1f0f700a68..b1e1178792 100644
--- a/src/msw/window.cpp
+++ b/src/msw/window.cpp
@@ -675,7 +675,7 @@ wxWindowMSW::MSWShowWithEffect(bool show,
                                unsigned timeout)
 {
 #if wxUSE_DYNLIB_CLASS
-    if ( effect == wxSHOW_EFFECT_NONE )
+    if ( effect == wxSHOW_EFFECT_NONE || !IsShownOnScreen() )
         return Show(show);
 
     if ( !wxWindowBase::Show(show) )