CGImageSourceGetTypeID()

Declaration

func CGImageSourceGetTypeID() -> CFTypeID

Return Value

Returns the Core Foundation type ID for an image source.

Discussion

A type identifier is an integer that identifies the opaque type to which a Core Foundation object belongs. You use type IDs in various contexts, such as when you are operating on heterogeneous collections. Note that a Core Foundation type ID is different from a uniform type identifier.

See Also

Getting Information From an Image Source

• CGImageSourceGetType(_:)
• CGImageSourceCopyTypeIdentifiers()
• CGImageSourceGetCount(_:)
• CGImageSourceCopyProperties(_:_:)
• CGImageSourceCopyPropertiesAtIndex(_:_:_:)
• CGImageSourceCopyAuxiliaryDataInfoAtIndex(_:_:_:)