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Basalt/docs/objects/ChangeableObject/onChange.md
Robert Jelic bb1b1beb79 Basalt 1.7 Update
- New Objects (Flexbox, Graph, Treeview)
- Pluginsystem to add/remove functionality
- Reworked the entire Object system, instead of one big Object Class we have multiple classes: Object, VisualObject, ChangeableObject
- Instead of one big Frame Class we have multiple Frame Classes: BaseFrame, Frame, MovableFrame, ScrollableFrame, MonitorFrame, Flexbox
- Removed the Animation Object, and added a animation plugin instead
- Removed the Graphic Object and merged it's functionality with the image object
- Updated currently existing objects
2023-04-30 17:05:34 +02:00

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Markdown

## onChange
### Description
`onChange(self, event, value)`
The onChange event is triggered when the value of a ChangeableObject, such as a Slider, is changed by the user.
### Returns
1. `object` The object in use
### Usage
* Add an onChange event to a Slider:
```lua
local basalt = require("basalt")
local main = basalt.createFrame()
local slider = main:addSlider()
:setPosition(3,3)
:setSize(12,3)
:setValue(50)
function sliderOnChange(self, event, value)
basalt.debug("Slider value changed to", value)
end
slider:onChange(sliderOnChange)
basalt.autoUpdate()
```