From 2a9a42fd23bfdb13512e58f8854fcbb1cdb5aaf2 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Tue, 29 Sep 2015 00:44:08 +0200
Subject: [PATCH] Don't pretend that we implement
 IWICBitmapSource::CopyPalette()

We don't and it's unclear how to do it, so just return
WINCODEC_ERR_PALETTEUNAVAILABLE instead of pretending that we copied the
palette when we didn't.

See #16625.
---
 src/msw/graphicsd2d.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/msw/graphicsd2d.cpp b/src/msw/graphicsd2d.cpp
index f0b3e9debe..061582fe93 100644
--- a/src/msw/graphicsd2d.cpp
+++ b/src/msw/graphicsd2d.cpp
@@ -1375,10 +1375,9 @@ public:
         return S_OK;
     }
 
-    HRESULT STDMETHODCALLTYPE CopyPalette(__RPC__in_opt IWICPalette *palette) wxOVERRIDE
+    HRESULT STDMETHODCALLTYPE CopyPalette(__RPC__in_opt IWICPalette*  WXUNUSED(palette)) wxOVERRIDE
     {
-        palette = NULL;
-        return S_OK;
+        return WINCODEC_ERR_PALETTEUNAVAILABLE;
     }
 
     HRESULT STDMETHODCALLTYPE CopyPixels(