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Query whether the property exists.
Component | Version | macOS | Windows | Linux | Server | iOS SDK |
CGImageSource | 9.4 | ✅ Yes | ❌ No | ❌ No | ✅ Yes, on macOS | ✅ Yes |
Parameter | Description | Example |
---|---|---|
Ref | The image source reference number returned by CGImageSource.CreateWithData, CGImageSource.CreateWithPath or CGImageSource.CreateWithURL | $ref |
Index | The index of the image to query. -1 for global properties. Else a number from 0 to CGImageSource.Count-1. | 0 |
Key | The property name to query. | "PixelWidth" |
Returns 1, 0 or error.
Created 30th August 2019, last changed 28th November 2019
CGImageSource.FileName - CGImageSource.ImageAtIndex
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