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

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

windowscodecs: Implement IWICBitmapDecoder::GetMetadataQueryReader in the GIF decoder.
d3280c86 · Dmitry Timoshkov · Alexandre Julliard · c94bf3cf · d3280c86
Commit d3280c86 authored Jun 22, 2017 by Dmitry Timoshkov Committed by Alexandre Julliard Jun 26, 2017
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gifformat.c dlls/windowscodecs/gifformat.c +6 -1

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--- 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,