[PATCH 3/9] windowscodecs: Implement IWICBitmapDecoder::GetMetadataQueryReader in the PNG decoder.

[Dmitry Timoshkov]

Signed-off-by: Dmitry Timoshkov <dmitry(a)baikal.ru>
---
 dlls/windowscodecs/pngformat.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/dlls/windowscodecs/pngformat.c b/dlls/windowscodecs/pngformat.c
index 786d8360e0..7050c95121 100644
--- a/dlls/windowscodecs/pngformat.c
+++ b/dlls/windowscodecs/pngformat.c
@@ -842,10 +842,14 @@ static HRESULT WINAPI PngDecoder_CopyPalette(IWICBitmapDecoder *iface,
 }
 
 static HRESULT WINAPI PngDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
-    IWICMetadataQueryReader **ppIMetadataQueryReader)
+    IWICMetadataQueryReader **reader)
 {
-    FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
-    return E_NOTIMPL;
+    TRACE("(%p,%p)\n", iface, reader);
+
+    if (!reader) return E_INVALIDARG;
+
+    *reader = NULL;
+    return WINCODEC_ERR_UNSUPPORTEDOPERATION;
 }
 
 static HRESULT WINAPI PngDecoder_GetPreview(IWICBitmapDecoder *iface,
-- 
2.19.2