windowscodecs: Implement GetThumbnail in the PNG frame decoder.
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@ -903,8 +903,12 @@ static HRESULT WINAPI PngDecoder_Frame_GetColorContexts(IWICBitmapFrameDecode *i
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static HRESULT WINAPI PngDecoder_Frame_GetThumbnail(IWICBitmapFrameDecode *iface,
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IWICBitmapSource **ppIThumbnail)
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{
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FIXME("(%p,%p): stub\n", iface, ppIThumbnail);
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return E_NOTIMPL;
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TRACE("(%p,%p)\n", iface, ppIThumbnail);
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if (!ppIThumbnail) return E_INVALIDARG;
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*ppIThumbnail = NULL;
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return WINCODEC_ERR_CODECNOTHUMBNAIL;
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}
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static const IWICBitmapFrameDecodeVtbl PngDecoder_FrameVtbl = {
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