CGImageSourceGetPrimaryImageIndex(_:)

Declaration

func CGImageSourceGetPrimaryImageIndex(_ isrc: CGImageSource) -> Int

Parameters

• isrc:

  The image source that contains the image data.

Return Value

The index of the primary image, or 0 for image formats other than the HEIF format.

See Also

Extracting Images From an Image Source

• CGImageSourceCreateImageAtIndex(_:_:_:)
• CGImageSourceCreateThumbnailAtIndex(_:_:_:)