# Custom Component how to access AActor functions

**URL:** <https://forums.unrealengine.com/t/custom-component-how-to-access-aactor-functions/286602>\
**Category:** Community & Industry Discussion\
**Tags:** access, actor, unreal-engine, Components, question\
**Created:** [June 23, 2014, 6:50pm UTC](https://forums.unrealengine.com/t/custom-component-how-to-access-aactor-functions/286602 "2014-06-23T18:50:06Z")\
**Posts on this page:** 1\
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**Author:** ![sh0day](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@sh0day](https://forums.unrealengine.com/u/sh0day)\
**Post date:** [June 24, 2014, 6:58pm UTC](https://forums.unrealengine.com/t/custom-component-how-to-access-aactor-functions/286602/2 "2014-06-24T18:58:20Z")

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Each AActor has some events you can attach a callback function to. This function will be called when the event occurs.

Here you can find some more details about event handling/delegates:

> **[Delegates](https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/ProgrammingWithCPP/UnrealArchitecture/Delegates/)**
>
> Data types that reference and execute member functions on C++ Objects

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It boils down to adding a function to your component:

```
UFUNCTION()
void myBeginCursorOver(AActor* OtherActor);

```

and register it (in your constructor for example):

```
OnActorBeginOverlap.AddDynamic(this, &YourClass::myBeginCursorOver);

```

Don’t forget to activate mouse events in your PlayerController (bEnableMouseOverEvents = true)

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