EventTouchRef
public struct EventTouchRef : EventTouchProtocol
The EventTouchRef
type acts as a lightweight Swift reference to an underlying GdkEventTouch
instance.
It exposes methods that can operate on this data type through EventTouchProtocol
conformance.
Use EventTouchRef
only as an unowned
reference to an existing GdkEventTouch
instance.
Used for touch events.
type
field will be one of GDK_TOUCH_BEGIN
, GDK_TOUCH_UPDATE
,
GDK_TOUCH_END
or GDK_TOUCH_CANCEL
.
Touch events are grouped into sequences by means of the sequence
field, which can also be obtained with gdk_event_get_event_sequence()
.
Each sequence begins with a GDK_TOUCH_BEGIN
event, followed by
any number of GDK_TOUCH_UPDATE
events, and ends with a GDK_TOUCH_END
(or GDK_TOUCH_CANCEL
) event. With multitouch devices, there may be
several active sequences at the same time.
-
Untyped pointer to the underlying `GdkEventTouch` 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 typeDeclaration
Swift
@inlinable init(_ p: UnsafeMutablePointer<GdkEventTouch>)
-
Designated initialiser from a constant pointer to the underlying
C
data typeDeclaration
Swift
@inlinable init(_ p: UnsafePointer<GdkEventTouch>)
-
Conditional initialiser from an optional pointer to the underlying
C
data typeDeclaration
Swift
@inlinable init!(_ maybePointer: UnsafeMutablePointer<GdkEventTouch>?)
-
Conditional initialiser from an optional, non-mutable pointer to the underlying
C
data typeDeclaration
Swift
@inlinable init!(_ maybePointer: UnsafePointer<GdkEventTouch>?)
-
Conditional initialiser from an optional
gpointer
Declaration
Swift
@inlinable init!(gpointer g: gpointer?)
-
Conditional initialiser from an optional, non-mutable
gconstpointer
Declaration
Swift
@inlinable init!(gconstpointer g: gconstpointer?)
-
Reference intialiser for a related type that implements
EventTouchProtocol
Declaration
Swift
@inlinable init<T>(_ other: T) where T : EventTouchProtocol
-
Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
EventTouchProtocol
.Declaration
Swift
@inlinable init<T>(cPointer: UnsafeMutablePointer<T>)
-
Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
EventTouchProtocol
.Declaration
Swift
@inlinable init<T>(constPointer: UnsafePointer<T>)
-
Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
EventTouchProtocol
.Declaration
Swift
@inlinable init(mutating raw: UnsafeRawPointer)
-
Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
EventTouchProtocol
.Declaration
Swift
@inlinable init(raw: UnsafeMutableRawPointer)
-
Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
EventTouchProtocol
.Declaration
Swift
@inlinable init(opaquePointer: OpaquePointer)