ScreenGui

ScreenGui.ClipToDeviceSafeArea

ScreenGui.DisplayOrder

ScreenGui.IgnoreGuiInset

ScreenGui.SafeAreaCompatibility

ScreenGui.ScreenInsets

LayerCollector:GetLayoutNodeTree

LayerCollector

LayerCollector.Enabled

LayerCollector.ResetOnSpawn

LayerCollector.ZIndexBehavior

The below example would print "Part is now a child of Model".


Instance.AncestryChanged

child

parent

Instance.AttributeChanged

attribute

This code sample demonstrates the Changed event firing within a parent object.


This sample demonstrates the subtleties of the Changed event on normal objects
and "-Value" objects.


Instance.Changed

property

This snippet prints the names of objects as they are added to the Workspace:


Instance.ChildAdded

This snippet prints the names of objects as they are removed from the
Workspace:


Instance.ChildRemoved

This following example will print the name of any object that is added to the
Workspace:


Instance.DescendantAdded

descendant

The following example prints the name of any descendant as it is being removed
from the Workspace:


Instance.DescendantRemoving

This sample demonstrates how an Instance being destroyed remains in place
until the connected function yields.


Instance.Destroying

Instance.childAdded

This example creates a Part and adds a few sparkle objects to the part. Then
it calls Part:ClearAllChildren() to remove all of the children.


Instance:ClearAllChildren

This code first references an existing object in the `original` variable.
Then, it makes a copy of the object, sets the parent to that of the original,
and finally moves the copy to (0, 50, 0).


Instance:Clone

Instance:Destroy

Instance:FindFirstAncestor

name

Instance:FindFirstAncestorOfClass

className

Instance:FindFirstAncestorWhichIsA

The below would look in Workspace for an object name "Brick". If found, it
will change the name of the object to "Foo".


Instance:FindFirstChild

recursive

Instance:FindFirstChildOfClass

Instance:FindFirstChildWhichIsA

Instance:FindFirstDescendant

Instance:GetActor

Instance:GetAttribute

Instance:GetAttributeChangedSignal

Instance:GetAttributes

The below would print the name of all objects currently in Workspace when ran.


Instance:GetChildren

Instance:GetDebugId

scopeLength

GetDescendants is often used to do something to all the descendants that are a
particular type of object. The code in this example uses GetDescendants and
`Class.Instance:IsA()` to find all of the parts in the workspace and turns
them green.


Instance:GetDescendants

This code sample demonstrates the behavior of `Class.Instance:GetFullName()`.
It shows how the function behaves when called on an object not in the
`DataModel` hierarchy, and it also shows how the return value does not escape
special characters.


This code sample re-implements the `Class.Instance:GetFullName()` function in
Lua.


Instance:GetFullName

This code sample demonstrates the equivalence of the `Changed` event and event
returned by `GetPropertyChangedSignal`.


This code sample demonstrates how to save a value before a changed event fires
on it in order to get more information about a change.


Instance:GetPropertyChangedSignal

Instance:IsA

Instance:IsAncestorOf

Instance:IsDescendantOf

ancestor

The following code demonstrates how a part can be re-added to the DataModel
after being removed:


Instance:Remove

Instance:SetAttribute

value

The following code waits for an instance named "Part" to be added to
Workspace.


Instance:WaitForChild

childName

timeOut

Instance:children

Instance:clone

Instance:destroy

Instance:findFirstChild

Instance:getChildren

Instance:isA

Instance:isDescendantOf

Instance:remove

Instance

Instance.Archivable

Instance.ClassName

Instance.DataCost

Instance.Name

Instance.Parent

Instance.RobloxLocked

Instance.SourceAssetId

Instance.archivable

Instance.className

This example shows how to use `Class.GuiBase2d.SelectionChanged` to set the
color of a background frame depending on if the gamepad selection has a child
GuiObject focused in a hierarchy that looks like this:

<img src="/assets/engine-api/classes/GuiBase2d/Gamepad-SelectionChanged.png" />

You can add code to change the background color of backgroundWindow to green
when buttons 1, 2 or 3 are selected and change to red when other buttons
outside the frame are selected. This helps you to add any new buttons to the
backgroundWindow without updating the code.


GuiBase2d.SelectionChanged

amISelected

previousSelection

newSelection

GuiBase2d

This code sample shows how a UI element's size, position and rotation can be
copied without parenting a "copycat" to the original. It uses the
Absolute-family of properties to orient a "copycat" Frame that covers on the
screen space that the original does.


GuiBase2d.AbsolutePosition

GuiBase2d.AbsoluteRotation

GuiBase2d.AbsoluteSize

GuiBase2d.AutoLocalize

GuiBase2d.ClippedRect

GuiBase2d.IsNotOccluded

GuiBase2d.Localize

GuiBase2d.RawRect2D

GuiBase2d.RootLocalizationTable

GuiBase2d.SelectionBehaviorDown

GuiBase2d.SelectionBehaviorLeft

GuiBase2d.SelectionBehaviorRight

GuiBase2d.SelectionBehaviorUp

GuiBase2d.SelectionGroup

GuiBase2d.TotalGroupScale

GuiBase

Default Value: {defaultValueStart}{defaultValueEnd}

This function returns immediately if possible, but can yield the thread that called it until it can return a value.

This member doesn’t appear in the object browser and is not intended for widespread use.

This member is only accessible only through the command bar. Attempting to access this member from scripts causes an error.

This function can’t pause the Lua thread that called it.

Attempting to access this member in scripts causes an error. You might be able to access this member from Roblox Studio's property window.

This member doesn’t appear in Roblox Studio’s Object Browser.

You can’t create an instance of this class with the Instance.new constructor.

Roblox does not replicate this member across its server-client boundary.

Lua code can’t access this member. You might be able to change its value from the property window in Roblox Studio.

This object’s replication behavior is dependent on the player who owns it.

This member is accessible only through the command bar and plugins only. Attempting to access this member from scripts causes an error.

This property is read-only and is safe to read in unsynchronized threads. Attempting to write to it causes an error.

This member is read only. Attempting to write to this member causes an error.

This member is accessible only in CoreScripts.

Only Roblox CoreScripts can access this member, and it isn’t usable by Players.

You can read and write to this property safely from multiple threads.

This class is a top-level singleton. Retrieve an instance of this class with the GetService function.

Multiple threads can potentially write to this property, so it’s unsafe to read from unsynchronized threads.

This function pauses the Lua thread that called it until it returns a result. This doesn’t interrupt other scripts.

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ScreenGui

Caching static UI for performance improvements

Summary

Properties

Methods

Events

Properties

ClipToDeviceSafeArea

DisplayOrder

IgnoreGuiInset

SafeAreaCompatibility

ScreenInsets

Methods

Events