[15/17] windowscodecs: Implement IWICBitmapDecoder::GetMetadataQueryReader in the GIF decoder.

[Dmitry Timoshkov]

Signed-off-by: Dmitry Timoshkov <dmitry at baikal.ru>
---
 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 01ef089215..f63a7f37a9 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,
-- 
2.13.1