MouseWheelEvent

classin packageklyn.gui.event

public class MouseWheelEvent extends GuiEvent:

Event

└ GuiEvent

└ MouseWheelEvent

Mouse wheel event payload emitted by GUI widgets.

Deltas use the native wheel convention: a positive vertical delta means scrolling up, a negative vertical delta means scrolling down. Backends normalize one wheel notch to roughly 120, matching the Win32 convention.

widget.mouseWheel += lambda(e: MouseWheelEvent): print(e.deltaY)

Properties

Modifier and Type	Member	Description
public readonly property	alt `alt as Boolean`	Whether Alt was held during the wheel event.
public readonly property	control `control as Boolean`	Whether Control was held during the wheel event.
public readonly property	deltaX `deltaX as Int`	Horizontal wheel delta.
public readonly property	deltaY `deltaY as Int`	Vertical wheel delta.
public readonly property	shift `shift as Boolean`	Whether Shift was held during the wheel event.
public readonly property	x `x as Int`	Pointer x coordinate in window-client coordinates.
public readonl	y `y property y as Int`	Pointer y coordinate in window-client coordinates.

Properties inherited from Event: source, timestamp

Constructors

Modifier and Type	Member	Description
public	MouseWheelEvent `MouseWheelEvent(source as Object, x as Int, y as Int, deltaX as Int = 0, deltaY as Int = 0, alt as Boolean = false, control as Boolean = false, shift as Boolean = false):`	Creates a mouse wheel event payload.