GestureZoomRef

public struct GestureZoomRef : GestureZoomProtocol, GWeakCapturing

GtkGestureZoom is a GtkGesture for 2-finger pinch/zoom gestures.

Whenever the distance between both tracked sequences changes, the [signalGtk.GestureZoom::scale-changed] signal is emitted to report the scale factor.

The GestureZoomRef type acts as a lightweight Swift reference to an underlying GtkGestureZoom instance. It exposes methods that can operate on this data type through GestureZoomProtocol conformance. Use GestureZoomRef only as an unowned reference to an existing GtkGestureZoom instance.

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  • ptr 
    Untyped pointer to the underlying `GtkGestureZoom` instance.

    For type-safe access, use the generated, typed pointer gesture_zoom_ptr property instead.

    Declaration

    Swift

    public let ptr: UnsafeMutableRawPointer!
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GestureZoom Class

  • Designated initialiser from the underlying C data type

    Declaration

    Swift

    @inlinable
init(_ p: UnsafeMutablePointer<GtkGestureZoom>)
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  • Designated initialiser from a constant pointer to the underlying C data type

    Declaration

    Swift

    @inlinable
init(_ p: UnsafePointer<GtkGestureZoom>)
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  • Conditional initialiser from an optional pointer to the underlying C data type

    Declaration

    Swift

    @inlinable
init!(_ maybePointer: UnsafeMutablePointer<GtkGestureZoom>?)
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  • Conditional initialiser from an optional, non-mutable pointer to the underlying C data type

    Declaration

    Swift

    @inlinable
init!(_ maybePointer: UnsafePointer<GtkGestureZoom>?)
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  • Conditional initialiser from an optional gpointer

    Declaration

    Swift

    @inlinable
init!(gpointer g: gpointer?)
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  • Conditional initialiser from an optional, non-mutable gconstpointer

    Declaration

    Swift

    @inlinable
init!(gconstpointer g: gconstpointer?)
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  • Reference intialiser for a related type that implements GestureZoomProtocol

    Declaration

    Swift

    @inlinable
init<T>(_ other: T) where T : GestureZoomProtocol
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  • This factory is syntactic sugar for setting weak pointers wrapped in GWeak<T>

    Declaration

    Swift

    @inlinable
static func unowned<T>(_ other: T) -> GestureZoomRef where T : GestureZoomProtocol
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  • Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to GestureZoomProtocol.

    Declaration

    Swift

    @inlinable
init<T>(cPointer: UnsafeMutablePointer<T>)
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  • Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to GestureZoomProtocol.

    Declaration

    Swift

    @inlinable
init<T>(constPointer: UnsafePointer<T>)
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to GestureZoomProtocol.

    Declaration

    Swift

    @inlinable
init(mutating raw: UnsafeRawPointer)
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to GestureZoomProtocol.

    Declaration

    Swift

    @inlinable
init(raw: UnsafeMutableRawPointer)
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to GestureZoomProtocol.

    Declaration

    Swift

    @inlinable
init(opaquePointer: OpaquePointer)
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  • Returns a newly created `GtkGesture` that recognizes

    pinch/zoom gestures.

    Declaration

    Swift

    @inlinable
init()
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