GI.Gdk.Objects.TouchpadEvent

An event related to a gesture on a touchpad device.

Unlike touchscreens, where the windowing system sends basic sequences of begin, update, end events, and leaves gesture recognition to the clients, touchpad gestures are typically processed by the system, resulting in these events.

Exported types

newtype TouchpadEvent

Memory-managed wrapper type.

Constructors

TouchpadEvent (ManagedPtr TouchpadEvent)

Instances

Eq TouchpadEvent

Defined in GI.Gdk.Objects.TouchpadEvent

Methods

(==) :: TouchpadEvent -> TouchpadEvent -> Bool

(/=) :: TouchpadEvent -> TouchpadEvent -> Bool

BoxedPtr TouchpadEvent

Defined in GI.Gdk.Objects.TouchpadEvent

Methods

boxedPtrCopy :: TouchpadEvent -> IO TouchpadEvent

boxedPtrFree :: TouchpadEvent -> IO ()

ManagedPtrNewtype TouchpadEvent

Defined in GI.Gdk.Objects.TouchpadEvent

Methods

toManagedPtr :: TouchpadEvent -> ManagedPtr TouchpadEvent

TypedObject TouchpadEvent

Defined in GI.Gdk.Objects.TouchpadEvent

Methods

glibType :: IO GType

HasParentTypes TouchpadEvent

Defined in GI.Gdk.Objects.TouchpadEvent

type ParentTypes TouchpadEvent

Defined in GI.Gdk.Objects.TouchpadEvent

type ParentTypes TouchpadEvent = '[Event]

class (BoxedPtr o, TypedObject o, IsDescendantOf TouchpadEvent o) => IsTouchpadEvent o

Type class for types which can be safely cast to TouchpadEvent, for instance with toTouchpadEvent.

Instances

(BoxedPtr o, TypedObject o, IsDescendantOf TouchpadEvent o) => IsTouchpadEvent o

Defined in GI.Gdk.Objects.TouchpadEvent

toTouchpadEvent :: (MonadIO m, IsTouchpadEvent o) => o -> m TouchpadEvent

Cast to TouchpadEvent, for types for which this is known to be safe. For general casts, use castTo.

Methods

Click to display all available methods, including inherited ones

Methods

ref, triggersContextMenu, unref.

Getters

getAxes, getAxis, getDeltas, getDevice, getDeviceTool, getDisplay, getEventSequence, getEventType, getGesturePhase, getHistory, getModifierState, getNFingers, getPinchAngleDelta, getPinchScale, getPointerEmulated, getPosition, getSeat, getSurface, getTime.

Setters

None.

getDeltas

touchpadEventGetDeltas

Arguments

:: (HasCallStack, MonadIO m, IsTouchpadEvent a)

=> a

event: a touchpad event

-> m (Double, Double)

Extracts delta information from a touchpad event.

getGesturePhase

touchpadEventGetGesturePhase

Arguments

:: (HasCallStack, MonadIO m, IsTouchpadEvent a)

=> a

event: a touchpad event

-> m TouchpadGesturePhase

Returns: the gesture phase of event

Extracts the touchpad gesture phase from a touchpad event.

getNFingers

touchpadEventGetNFingers

Arguments

:: (HasCallStack, MonadIO m, IsTouchpadEvent a)

=> a

event: a touchpad event

-> m Word32

Returns: the number of fingers for event

Extracts the number of fingers from a touchpad event.

getPinchAngleDelta

touchpadEventGetPinchAngleDelta

Arguments

:: (HasCallStack, MonadIO m, IsTouchpadEvent a)

=> a

event: a touchpad pinch event

-> m Double

Returns: the angle delta of event

Extracts the angle delta from a touchpad pinch event.

getPinchScale

touchpadEventGetPinchScale

Arguments

:: (HasCallStack, MonadIO m, IsTouchpadEvent a)

=> a

event: a touchpad pinch event

-> m Double

Returns: the scale of event

Extracts the scale from a touchpad pinch event.