class: TouchpadEvent

[16:7] extends: object

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.

Members

• handleObj
• lib
• retainedCallbacks
• signalHandlerNames
• signalSetterHandlers

Methods

• TouchpadEvent (Handle = null)

  Creates a new TouchpadEvent by wrapping a native handle or another wrapper.

  • @p Handle is the native handle or another wrapper whose handle to adopt.

• toNativeHandle (Source)

  Normalizes a constructor argument into a raw pointer carrier. Accepts a raw NativeHandle, a raw NativeBuffer returned from fn.call(...), another generated wrapper exposing handle(), or null. Returns null when the argument carries no pointer.

  • @p Source is the raw handle, raw buffer, wrapper, or null.
  • @r A raw pointer carrier or null when no pointer is present.

• getLib ()

  Returns the opened native library for this generated wrapper.

  • @r The opened native library.

• handle ()

  Returns the wrapped NativeHandle.

  • @r The wrapped NativeHandle.

• isNull ()

  Returns true when the wrapped handle is null.

  • @r A bool.

• describe ()

  Returns a small string for debugging generated wrappers.

  • @r A string.

• asEvent ()

  Wraps this handle as Event.

  • @r A Event object.

• get_gesture_phase ()

  Extracts the touchpad gesture phase from a touchpad event.

• get_n_fingers ()

  Extracts the number of fingers from a touchpad event.

• get_pinch_angle_delta ()

  Extracts the angle delta from a touchpad pinch event.

• get_pinch_scale ()

  Extracts the scale from a touchpad pinch event.