From 14425f990ca9cee172f2709fef9fbc9f64bda0ba Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sun, 14 Jun 2015 14:01:55 +0200
Subject: [PATCH] Correctly deinitialize wxUxThemeEngine in wxMSW.

Set ms_isThemeEngineAvailable to -1, meaning that we need to reinitialize
themes, instead of false, meaning that themes are not available.

This fixes problems when the library is initialized, shut down and then
initialized again.

Closes #17023.
---
 src/msw/uxtheme.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/msw/uxtheme.cpp b/src/msw/uxtheme.cpp
index 568110d10b..a67c9635e4 100644
--- a/src/msw/uxtheme.cpp
+++ b/src/msw/uxtheme.cpp
@@ -55,7 +55,7 @@ public:
             // something like this
             wxUxThemeEngine *themeEngine = wxUxThemeEngine::ms_themeEngine;
             wxUxThemeEngine::ms_themeEngine = NULL;
-            wxUxThemeEngine::ms_isThemeEngineAvailable = false;
+            wxUxThemeEngine::ms_isThemeEngineAvailable = -1;
 
             delete themeEngine;
         }