From f52f910f8be9edafd77e3d91764a19cedc771e01 Mon Sep 17 00:00:00 2001
From: Dmitry Timoshkov <dmitry@baikal.ru>
Date: Mon, 10 Dec 2012 11:45:04 +0800
Subject: [PATCH] windowscodecs: Implement GetThumbnail in the PNG frame
 decoder.

---
 dlls/windowscodecs/pngformat.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/dlls/windowscodecs/pngformat.c b/dlls/windowscodecs/pngformat.c
index fb45804916..4183d8ea11 100644
--- a/dlls/windowscodecs/pngformat.c
+++ b/dlls/windowscodecs/pngformat.c
@@ -903,8 +903,12 @@ static HRESULT WINAPI PngDecoder_Frame_GetColorContexts(IWICBitmapFrameDecode *i
 static HRESULT WINAPI PngDecoder_Frame_GetThumbnail(IWICBitmapFrameDecode *iface,
     IWICBitmapSource **ppIThumbnail)
 {
-    FIXME("(%p,%p): stub\n", iface, ppIThumbnail);
-    return E_NOTIMPL;
+    TRACE("(%p,%p)\n", iface, ppIThumbnail);
+
+    if (!ppIThumbnail) return E_INVALIDARG;
+
+    *ppIThumbnail = NULL;
+    return WINCODEC_ERR_CODECNOTHUMBNAIL;
 }
 
 static const IWICBitmapFrameDecodeVtbl PngDecoder_FrameVtbl = {