From within `UserWidget`: get HUD

Development Programming & Scripting
1

It looks like I can do

GetGameInstance()->GetPrimaryPlayerController()->GetHUD()

and it seems this works for both, C++ and Blueprint.

Given that my UserWidget is loaded by a HUD in order to be added to the viewport … there should be a way to get the HUD in a more direct way.

But is there?

2

You could go a different route and just pass it in when creating the widget from code.

MyUserWidget.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "Blueprint/UserWidget.h"
#include "MyUserWidget.generated.h"

/**
 * 
 */
UCLASS()
class BALLROLL_API UMyUserWidget : public UUserWidget
{
	GENERATED_BODY()

public:
		
	UPROPERTY(BlueprintReadWrite, Category = "Default", meta = (ExposeOnSpawn = "true"))
		class AMyHUD* Hud;
};

MyUserWidget.cpp is empty

MyHUD.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/HUD.h"
#include "MyHUD.generated.h"

/**
 * 
 */
UCLASS()
class BALLROLL_API AMyHUD : public AHUD
{
	GENERATED_BODY()
	AMyHUD(const FObjectInitializer& ObjectInitializer);
		
};

MyHUD.cpp

// Fill out your copyright notice in the Description page of Project Settings.


#include "MyHUD.h"
#include "MyUserWidget.h"
#include "Engine/World.h"

AMyHUD::AMyHUD(const FObjectInitializer& ObjectInitializer)// : Super(ObjectInitializer)
{
	
	UMyUserWidget* userW = CreateWidget<UMyUserWidget>(GetWorld(), UMyUserWidget::StaticClass(), "Widget");
	if (userW) {
		userW->Hud = this;
		userW->AddToViewport();
	}

}
2 Likes
3

yep, I am about to implement it like this. I will make a base class “MyUserWidget” that inherits from UUserWidget where I will add the HUD property and I will derive all my user widgets from MyUserWidget.

Still seems odd to me.

4

Well it’s the most direct approach without jumping around classes. You just contact the reference directly.

5

How about GetOwningPlayer()->GetHUD() ?

2 Likes