Details panel for components created by components (all in C++)

Development Programming & Scripting C++
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17

in C++

in my arm component .h file :

protected:
	UPROPERTY(SkipSerialization)
	USkeletalMeshComponent* ArmSkeletalMesh;
public:
	UPROPERTY(EditAnywhere, BlueprintReadWrite)
	FTransform ArmMeshRelativeTransform;

in my arm component .cpp file :

#define MAKE_SUBCOMPONENT_NAME(ParentName, SubObjectName) FName(*FString::Printf(TEXT("%s_%s"), *ParentName, TEXT(SubObjectName)))

UArmComponent::UArmComponent(const FObjectInitializer& ObjectInitializer)
{
	// arm 1st person mesh
	FString ArmName = GetName();
	ArmSkeletalMesh = ObjectInitializer.CreateDefaultSubobject<USkeletalMeshComponent>(this, MAKE_SUBCOMPONENT_NAME(ArmName, "ArmSkeletalMesh"), true);
	ArmSkeletalMesh->SetupAttachment(this);
	ArmSkeletalMesh->bEditableWhenInherited = true;
   // parameters that used to be set in the blueprint
   // but they have no reason to be changed
	ArmSkeletalMesh->bOnlyOwnerSee = true;
	ArmSkeletalMesh->CastShadow = false;
	ArmSkeletalMesh->bCastDynamicShadow = false;
	ArmSkeletalMesh->bAffectDynamicIndirectLighting = false;
	ArmSkeletalMesh->bAffectDistanceFieldLighting = false;
	ArmSkeletalMesh->bCastStaticShadow = false;
}

void UArmComponent::BeginPlay()
{
	Super::BeginPlay();

   // apply the transform that was set in the blueprint
	ArmSkeletalMesh->SetRelativeTransform(ArmMeshRelativeTransform);
}

I hope this helps you