UUserWidget Drag and Drop .cpp implementation

Development Programming & Scripting UI
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1

How can I DetectDragifPressed from within cpp?

FEventReply UItemWidget::OnMouseButtonDown_Implementation(FGeometry MyGeometry, const FPointerEvent & MouseEvent)
{
	FEventReply reply = Super::OnMouseButtonDown_Implementation(MyGeometry, MouseEvent);

	GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, TEXT("UItemWidget::OnMouseButtonDown_Implementation!"));



	return reply;
}

I’m guessing it looks something like this but I cannot cast my UUserWidget this way

FReply::Handled().DetectDrag(MakeShareable(this), EKeys::LeftMouseButton);

https://forums.unrealengine.com/attachment.php?attachmentid=14385&d=1413500597

Also, on OnDragDetected_Implementation, how would I create a DragDropOperation

void UItemWidget::OnDragDetected_Implementation(struct FGeometry MyGeometry, const struct FPointerEvent & PointerEvent, class UDragDropOperation *& Operation)
{
	Super::OnDragDetected_Implementation(MyGeometry, PointerEvent, Operation);

	GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, TEXT("OnDragDetected_Implementation!"));
}

https://forums.unrealengine.com/attachment.php?attachmentid=14386&d=1413500612