Gestures and event handling

CtkEventController — Self-contained handler of series of events
CtkEventControllerKey — Event controller for key events
CtkEventControllerScroll — Event controller for scroll events
CtkEventControllerMotion — Event controller for motion events
CtkGesture — Base class for gestures
CtkGestureSingle — Base class for mouse/single-touch gestures
CtkGestureDrag — Drag gesture
CtkGestureLongPress — "Press and Hold" gesture
CtkGestureMultiPress — Multipress gesture
CtkGesturePan — Pan gesture
CtkGestureSwipe — Swipe gesture
CtkGestureRotate — Rotate gesture
CtkGestureZoom — Zoom gesture
CtkGestureStylus — Gesture for stylus input
CtkPadController — Controller for drawing tablet pads