From 2ea1d3fc198d7eb504543f55fe362e5214ac45d1 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 ee30955555..18f8a867fa 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;
         }