A widget is a UI component such as the inventory window or item container window. A widget's layout is grid-based and contains child elements that either display information to the player (e.g. the player's health or description of a quest) or allow the player to interact with them (e.g. a button that triggers a script or a slot for placing an item into). Custom widgets can be created in the Widget Editor.
You can access and change certain element properties from within a script by simply referencing the parent widget and the child element by their unique IDs. The following example code assumes there is a widget with an ID of “test”, and it contains a text field with an ID of “0001” and a button with an ID of “0002”.
hide_widget("test"); $name = widget["test"].element["0001"].text; display_message("Hello, " + $name + "!")
This script will change the text of the button to “New Text”.
widget["test"].element["0002"].text = "New Text"