How to set the widget class to none in c++

Development Programming & Scripting
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2

Where are you trying to clear it?

  • Inside of a widget
  • Inside of a widgetComponent

You could try checking the RemoveWidgetFromScreen() function
if you want to remove a widget then you can call RemoveFromParent(); directly on it.
it all depends on the expanded use case that you need.

This is from the widgetComponent

void UWidgetComponent::SetWidgetClass(TSubclassOf<UUserWidget> InWidgetClass)
{
	if (WidgetClass != InWidgetClass)
	{
		WidgetClass = InWidgetClass;

		if (FSlateApplication::IsInitialized())
		{
			if (HasBegunPlay() && !GetWorld()->bIsTearingDown)
			{
				if (WidgetClass)
				{
					UUserWidget* NewWidget = CreateWidget(GetWorld(), WidgetClass);
					SetWidget(NewWidget);
				}
				else
				{
					SetWidget(nullptr);
				}
			}
		}
	}
}

And in SetWidget

void UWidgetComponent::SetWidget(UUserWidget* InWidget)
{
	if (InWidget != nullptr)
	{
		SetSlateWidget(nullptr);
	}

	if (Widget)
	{
		RemoveWidgetFromScreen();
	}

	Widget = InWidget;

	UpdateWidget();
}