DropRef
public struct DropRef : DropProtocol, GWeakCapturing
The DropRef
type acts as a lightweight Swift reference to an underlying GdkDrop
instance.
It exposes methods that can operate on this data type through DropProtocol
conformance.
Use DropRef
only as an unowned
reference to an existing GdkDrop
instance.
The GdkDrop
object represents the target of an ongoing DND operation.
Possible drop sites get informed about the status of the ongoing drag
operation with events of type GDK_DRAG_ENTER
, GDK_DRAG_LEAVE
,
GDK_DRAG_MOTION
and GDK_DROP_START
. The GdkDrop
object can be obtained
from these [classGdk.Event
] types using [methodGdk.DNDEvent.get_drop
].
The actual data transfer is initiated from the target side via an async
read, using one of the GdkDrop
methods for this purpose:
[methodGdk.Drop.read_async
] or [methodGdk.Drop.read_value_async
].
GTK provides a higher level abstraction based on top of these functions, and so they are not normally needed in GTK applications. See the “Drag and Drop” section of the GTK documentation for more information.
-
Untyped pointer to the underlying `GdkDrop` instance.
For type-safe access, use the generated, typed pointer
drop_ptr
property instead.Declaration
Swift
public let ptr: UnsafeMutableRawPointer!
-
Designated initialiser from the underlying
C
data typeDeclaration
Swift
@inlinable init(_ p: UnsafeMutablePointer<GdkDrop>)
-
Designated initialiser from a constant pointer to the underlying
C
data typeDeclaration
Swift
@inlinable init(_ p: UnsafePointer<GdkDrop>)
-
Conditional initialiser from an optional pointer to the underlying
C
data typeDeclaration
Swift
@inlinable init!(_ maybePointer: UnsafeMutablePointer<GdkDrop>?)
-
Conditional initialiser from an optional, non-mutable pointer to the underlying
C
data typeDeclaration
Swift
@inlinable init!(_ maybePointer: UnsafePointer<GdkDrop>?)
-
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
DropProtocol
Declaration
Swift
@inlinable init<T>(_ other: T) where T : DropProtocol
-
This factory is syntactic sugar for setting weak pointers wrapped in
GWeak<T>
Declaration
Swift
@inlinable static func unowned<T>(_ other: T) -> DropRef where T : DropProtocol
-
Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to
DropProtocol
.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
DropProtocol
.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
DropProtocol
.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
DropProtocol
.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
DropProtocol
.Declaration
Swift
@inlinable init(opaquePointer: OpaquePointer)