Dmitry Timoshkov : windowscodecs: Implement IWICBitmapDecoder:: GetMetadataQueryReader in the GIF decoder.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d3280c867bc7b7e36657aa0f50db26d7258a15b9
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=d3280c867bc7b7e36657aa0f50db26d7258a15b9

Author: Dmitry Timoshkov <dmitry at baikal.ru>
Date:   Thu Jun 22 11:38:59 2017 +0800

windowscodecs: Implement IWICBitmapDecoder::GetMetadataQueryReader in the GIF decoder.

Signed-off-by: Dmitry Timoshkov <dmitry at baikal.ru>
Signed-off-by: Vincent Povirk <vincent at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/windowscodecs/gifformat.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/dlls/windowscodecs/gifformat.c b/dlls/windowscodecs/gifformat.c
index 01ef089..f63a7f3 100644
--- a/dlls/windowscodecs/gifformat.c
+++ b/dlls/windowscodecs/gifformat.c
@@ -1247,8 +1247,13 @@ static HRESULT WINAPI GifDecoder_CopyPalette(IWICBitmapDecoder *iface, IWICPalet
 static HRESULT WINAPI GifDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
     IWICMetadataQueryReader **ppIMetadataQueryReader)
 {
+    GifDecoder *This = impl_from_IWICBitmapDecoder(iface);
+
     TRACE("(%p,%p)\n", iface, ppIMetadataQueryReader);
-    return WINCODEC_ERR_UNSUPPORTEDOPERATION;
+
+    if (!ppIMetadataQueryReader) return E_INVALIDARG;
+
+    return MetadataQueryReader_CreateInstance(&This->IWICMetadataBlockReader_iface, NULL, ppIMetadataQueryReader);
 }
 
 static HRESULT WINAPI GifDecoder_GetPreview(IWICBitmapDecoder *iface,