Region

open class Region : RegionProtocol

The Region type acts as an owner of an underlying cairo_region_t instance. It provides the methods that can operate on this data type through RegionProtocol conformance. Use Region as a strong reference or owner of a cairo_region_t instance.

  • ptr

    Untyped pointer to the underlying cairo_region_t instance. For type-safe access, use the generated, typed pointer _ptr property instead.

    Declaration

    Swift

    public let ptr: UnsafeMutableRawPointer
  • Designated initialiser from the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the Region instance.

    Declaration

    Swift

    public init(_ op: UnsafeMutablePointer<cairo_region_t>)

    Parameters

    op

    pointer to the underlying object

  • Designated initialiser from the underlying C data type. cairo_region_t does not allow reference counting, so despite the name no actual retaining will occur. i.e., ownership is transferred to the Region instance.

    Declaration

    Swift

    public init(retaining op: UnsafeMutablePointer<cairo_region_t>)

    Parameters

    op

    pointer to the underlying object

  • Reference intialiser for a related type that implements RegionProtocol cairo_region_t does not allow reference counting.

    Declaration

    Swift

    public init<T>(_ other: T) where T : RegionProtocol

    Parameters

    other

    an instance of a related type that implements RegionProtocol

  • Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to RegionProtocol.

    Declaration

    Swift

    public init<T>(cPointer p: UnsafeMutablePointer<T>)

    Parameters

    cPointer

    pointer to the underlying object

  • Unsafe typed, retaining initialiser. Do not use unless you know the underlying data type the pointer points to conforms to RegionProtocol.

    Declaration

    Swift

    public init<T>(retainingCPointer cPointer: UnsafeMutablePointer<T>)

    Parameters

    cPointer

    pointer to the underlying object

  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to RegionProtocol.

    Declaration

    Swift

    public init(raw p: UnsafeRawPointer)

    Parameters

    p

    raw pointer to the underlying object

  • Unsafe untyped, retaining initialiser. Do not use unless you know the underlying data type the pointer points to conforms to RegionProtocol.

    Declaration

    Swift

    public init(retainingRaw raw: UnsafeRawPointer)
  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to RegionProtocol.

    Declaration

    Swift

    public init(raw p: UnsafeMutableRawPointer)

    Parameters

    p

    mutable raw pointer to the underlying object

  • Unsafe untyped, retaining initialiser. Do not use unless you know the underlying data type the pointer points to conforms to RegionProtocol.

    Declaration

    Swift

    public init(retainingRaw raw: UnsafeMutableRawPointer)

    Parameters

    raw

    mutable raw pointer to the underlying object

  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to RegionProtocol.

    Declaration

    Swift

    public init(opaquePointer p: OpaquePointer)

    Parameters

    p

    opaque pointer to the underlying object

  • Unsafe untyped, retaining initialiser. Do not use unless you know the underlying data type the pointer points to conforms to RegionProtocol.

    Declaration

    Swift

    public init(retainingOpaquePointer p: OpaquePointer)

    Parameters

    p

    opaque pointer to the underlying object