getcallbackmember Synchronous

getcallbackvalue

Read an assigned callback member on an Instance as a callable. It is useful when a callback property is not exposed through ordinary property reading.

Syntax

Luau

getcallbackmember(instance: Instance, member: string) -> Function?

Parameters

Function parameters
Parameter	Type	Description
`instance`	`Instance`	Instance with a reflected callback member.
`member`	`string`	Case-sensitive callback member name.

Returns

Function?

The assigned callback function, or nil when the member has no callback.

Usage notes

The member must be a callback in the class reflection metadata; a regular event or property is different.

Example

Luau

local bindable = Instance.new("BindableFunction")
bindable.OnInvoke = function(value) return value end
local callback = getcallbackmember(bindable, "OnInvoke")
print(type(callback)) -- function
bindable:Destroy()