EventController

open class EventController : GLibObject.Object, EventControllerProtocol

GtkEventController is the base class for event controllers.

These are ancillary objects associated to widgets, which react to GdkEvents, and possibly trigger actions as a consequence.

Event controllers are added to a widget with [methodGtk.Widget.add_controller]. It is rarely necessary to explicitly remove a controller with [methodGtk.Widget.remove_controller].

See the chapter on input handling for an overview of the basic concepts, such as the capture and bubble phases of even propagation.

The EventController type acts as a reference-counted owner of an underlying GtkEventController instance. It provides the methods that can operate on this data type through EventControllerProtocol conformance. Use EventController as a strong reference or owner of a GtkEventController instance.

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  • Designated initialiser from the underlying `C` data type.

    This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the EventController instance.

    Declaration

    Swift

    @inlinable
public init(_ op: UnsafeMutablePointer<GtkEventController>)

    Parameters

    op

    pointer to the underlying object
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  • Designated initialiser from a constant pointer to the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the EventController instance.

    Declaration

    Swift

    @inlinable
public init(_ op: UnsafePointer<GtkEventController>)

    Parameters

    op

    pointer to the underlying object
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  • Optional initialiser from a non-mutating gpointer to the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the EventController instance.

    Declaration

    Swift

    @inlinable
override public init!(gpointer op: gpointer?)

    Parameters

    op

    gpointer to the underlying object
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  • Optional initialiser from a non-mutating gconstpointer to the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the EventController instance.

    Declaration

    Swift

    @inlinable
override public init!(gconstpointer op: gconstpointer?)

    Parameters

    op

    pointer to the underlying object
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  • Optional initialiser from a constant pointer to the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the EventController instance.

    Declaration

    Swift

    @inlinable
public init!(_ op: UnsafePointer<GtkEventController>?)

    Parameters

    op

    pointer to the underlying object
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  • Optional initialiser from the underlying C data type. This creates an instance without performing an unbalanced retain i.e., ownership is transferred to the EventController instance.

    Declaration

    Swift

    @inlinable
public init!(_ op: UnsafeMutablePointer<GtkEventController>?)

    Parameters

    op

    pointer to the underlying object
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  • Designated initialiser from the underlying C data type. Will retain GtkEventController. i.e., ownership is transferred to the EventController instance.

    Declaration

    Swift

    @inlinable
public init(retaining op: UnsafeMutablePointer<GtkEventController>)

    Parameters

    op

    pointer to the underlying object
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  • Reference intialiser for a related type that implements EventControllerProtocol Will retain GtkEventController.

    Declaration

    Swift

    @inlinable
public init<T>(eventController other: T) where T : EventControllerProtocol

    Parameters

    other

    an instance of a related type that implements EventControllerProtocol
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  • Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to EventControllerProtocol.

    Declaration

    Swift

    @inlinable
override public init<T>(cPointer p: UnsafeMutablePointer<T>)

    Parameters

    cPointer

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

    Declaration

    Swift

    @inlinable
override public init<T>(retainingCPointer cPointer: UnsafeMutablePointer<T>)

    Parameters

    cPointer

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

    Declaration

    Swift

    @inlinable
override public init(raw p: UnsafeRawPointer)

    Parameters

    p

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

    Declaration

    Swift

    @inlinable
override public init(retainingRaw 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 EventControllerProtocol.

    Declaration

    Swift

    @inlinable
public required init(raw p: UnsafeMutableRawPointer)

    Parameters

    p

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

    Declaration

    Swift

    @inlinable
required public init(retainingRaw raw: UnsafeMutableRawPointer)

    Parameters

    raw

    mutable raw pointer to the underlying object
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to EventControllerProtocol.

    Declaration

    Swift

    @inlinable
override public init(opaquePointer p: OpaquePointer)

    Parameters

    p

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

    Declaration

    Swift

    @inlinable
override public init(retainingOpaquePointer p: OpaquePointer)

    Parameters

    p

    opaque pointer to the underlying object
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