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WINCODEC_ERR_PROPERTYNOTSUPPORTED
WINCODEC_ERR_PROPERTYNOTSUPPORTED means that the selected WIC codec does not support the requested bitmap or metadata property. Unlike a property-not-found result, changing to another file of the same kind may not help because the limitation belongs to the codec or container feature.
What to check
- Confirm whether the property is supported at decoder level, frame level, or only for particular image formats.
- Use the capability information and format documentation before assuming thumbnails, palettes, metadata, or color contexts are universally available.
- Implement a deliberate fallback, such as generating a thumbnail from pixels rather than asking the codec for an embedded one.
This result is expected for many optional WIC features and should not automatically be logged as image corruption.
Microsoft: WIC decoder capabilities
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