From 446d70706499fb59f04186f81376dc8eab9d2ca9 Mon Sep 17 00:00:00 2001
From: Nusi <nusi@trac.wxwidgets.org>
Date: Tue, 1 Aug 2017 21:21:19 +0200
Subject: [PATCH] Get access to DrawThemeBackgroundEx API from wxUxThemeEngine
 (wxMSW)

---
 include/wx/msw/uxtheme.h | 2 ++
 src/msw/uxtheme.cpp      | 1 +
 2 files changed, 3 insertions(+)

diff --git a/include/wx/msw/uxtheme.h b/include/wx/msw/uxtheme.h
index d58fa74dbc..394dd4d975 100644
--- a/include/wx/msw/uxtheme.h
+++ b/include/wx/msw/uxtheme.h
@@ -108,6 +108,7 @@ typedef struct _DTTOPTS
 typedef HTHEME  (__stdcall *PFNWXUOPENTHEMEDATA)(HWND, const wchar_t *);
 typedef HRESULT (__stdcall *PFNWXUCLOSETHEMEDATA)(HTHEME);
 typedef HRESULT (__stdcall *PFNWXUDRAWTHEMEBACKGROUND)(HTHEME, HDC, int, int, const RECT *, const RECT *);
+typedef HRESULT (__stdcall *PFNWXUDRAWTHEMEBACKGROUNDEX)(HTHEME, HDC, int, int, const RECT *, const DTBGOPTS *);
 typedef HRESULT (__stdcall *PFNWXUDRAWTHEMETEXT)(HTHEME, HDC, int, int, const wchar_t *, int, DWORD, DWORD, const RECT *);
 typedef HRESULT (__stdcall *PFNWXUDRAWTHEMETEXTEX)(HTHEME, HDC, int, int, const wchar_t *, int, DWORD, RECT *, const DTTOPTS *);
 typedef HRESULT (__stdcall *PFNWXUGETTHEMEBACKGROUNDCONTENTRECT)(HTHEME, HDC, int, int, const RECT *, RECT *);
@@ -182,6 +183,7 @@ public:
     wxUX_THEME_DECLARE(PFNWXUOPENTHEMEDATA, OpenThemeData)
     wxUX_THEME_DECLARE(PFNWXUCLOSETHEMEDATA, CloseThemeData)
     wxUX_THEME_DECLARE(PFNWXUDRAWTHEMEBACKGROUND, DrawThemeBackground)
+    wxUX_THEME_DECLARE(PFNWXUDRAWTHEMEBACKGROUNDEX, DrawThemeBackgroundEx)
     wxUX_THEME_DECLARE(PFNWXUDRAWTHEMETEXT, DrawThemeText)
     wxUX_THEME_DECLARE(PFNWXUDRAWTHEMETEXTEX, DrawThemeTextEx)
     wxUX_THEME_DECLARE(PFNWXUGETTHEMEBACKGROUNDCONTENTRECT, GetThemeBackgroundContentRect)
diff --git a/src/msw/uxtheme.cpp b/src/msw/uxtheme.cpp
index 598731b2c8..d488aeba4d 100644
--- a/src/msw/uxtheme.cpp
+++ b/src/msw/uxtheme.cpp
@@ -126,6 +126,7 @@ bool wxUxThemeEngine::Initialize()
     RESOLVE_UXTHEME_FUNCTION(PFNWXUOPENTHEMEDATA, OpenThemeData);
     RESOLVE_UXTHEME_FUNCTION(PFNWXUCLOSETHEMEDATA, CloseThemeData);
     RESOLVE_UXTHEME_FUNCTION(PFNWXUDRAWTHEMEBACKGROUND, DrawThemeBackground);
+    RESOLVE_UXTHEME_FUNCTION(PFNWXUDRAWTHEMEBACKGROUNDEX, DrawThemeBackgroundEx);
     RESOLVE_UXTHEME_FUNCTION(PFNWXUDRAWTHEMETEXT, DrawThemeText);
     // This function is not available under XP, so don't fail if it can't be
     // resolved, we'll check before using it.