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# Core Foundation Structures

## Topics

### Structures

[`struct CGAffineTransform`](/documentation/CoreFoundation/CGAffineTransform)

[`struct CGAffineTransformComponents`](/documentation/CoreFoundation/CGAffineTransformComponents)

[`struct CGFloat`](/documentation/CoreFoundation/CGFloat-swift.struct)

The basic type for floating-point scalar values in Core Graphics and related frameworks.

[`struct CGPoint`](/documentation/CoreFoundation/CGPoint)

[`struct CGRect`](/documentation/CoreFoundation/CGRect)

[`struct CGSize`](/documentation/CoreFoundation/CGSize)

A structure that contains width and height values.

[`struct CGVector`](/documentation/CoreFoundation/CGVector)

A structure that contains a two-dimensional vector.

[`typedef struct IUnknownVTbl { ... } IUnknownVTbl;`](/documentation/CoreFoundation/IUnknownVTbl)


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