Event.MOUSE WHEEL

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Available since: Gideros 2015.04.26
Value: mouseWheel
Defined by: Sprite

Description

Event that fires when mouse wheel is used.

Modifiers can have values of:

  • KeyCode.MODIFIER_NONE, 0
  • KeyCode.MODIFIER_SHIFT, 1
  • KeyCode.MODIFIER_ALT, 2 (LEFT)
  • KeyCode.MODIFIER_CTRL, 4
  • KeyCode.MODIFIER_ALT, 6 (RIGHT, Alt Gr)
  • KeyCode.MODIFIER_META, 8

Parameters

x: (number) x coordinate of the click
y: (number) y coordinate of the click
rx: (number) unrounded x coordinate of the click
ry: (number) unrounded y coordinate of the click
wheel: (number) negative value when scrolled down and positive value when scrolled up (default value 120)
modifiers: (number) modifiers present

Example

local myscale = 0
mybitmap:addEventListener(Event.MOUSE_WHEEL, function(e)
	-- e.wheel = 120
	myscale = mybitmap:getScale() + e.wheel / 32
	mybitmap:setScale(myscale)
end)