C++: Object Reference is not compatible with created node

Development Programming & Scripting
1

I created c++ function by modifying “SetSkeletalMesh”.
However, object reference of mesh is not compatible with created node in Blueprint.
I can’t conect mesh reference to Target pin.
What Should I do?

img_target
img_target1026×352 41.5 KB

This is my C++ below.

【Header File】===============================

#pragma once

#include “CoreMinimal.h”
#include “Components/SkeletalMeshComponent.h”
#include “MyLoverVRClothSimulation2.generated.h”

/**
*
*/
UCLASS()
class MYLOVERVR_API UMyLoverVRClothSimulation2 : public USkeletalMeshComponent
{
GENERATED_BODY()

public:

UFUNCTION(BlueprintCallable, Category="ClothSimulation")
void SetSkeletalMesh2(class USkeletalMesh* NewMesh, bool bReinitPose = true);

};

【Cpp File】===============================

#include “MyLoverVRClothSimulation2.h”

void UMyLoverVRClothSimulation2::SetSkeletalMesh2(class USkeletalMesh* NewMesh, bool bReinitPose /= true/)
{
USkeletalMeshComponent::SetSkeletalMesh(NewMesh, bReinitPose);
}

2

Mesh is SkeletalMeshComponent.
You’ve declared SkeletalMesh.
You need to change your function declaration or input a skeletalmesh to the input pin.
You can retrieve the SkeletalMesh from your Mesh

3

Thanks for your reply!
And sorry for lack of info.
Where I want to connect is Target Pin, I show below(red circle).

connectpin
connectpin763×342 32.3 KB

This pin automatically come out when I put the node on blueprint.
Can I change Object Reference Type of Target Pin?

I couldn’t find the way to change the object reference type…

5

Oh… If your Mesh is surely MyLoverVRClothSimulation2 then how about cast the Mesh into your class?

6

Thanks for your quick reply!
You mean like this?

castimg
castimg993×378 47.3 KB

It was fail to cast…

7

Then your Mesh Shorts was not MyLoverVRClothSimulation2 Object I guess…

8

Yes, Mesh Shorts is Skeletal Mesh Components.
Is the way of my cast strange?

9

The class of an object is not just changed by casting to other class.
You need create and assign the exact instance to each object.
I think you need to change the Mesh Shorts into your class.
Where is the BP_TestHip_827 come from?
Did you change the parts into your own one? (MyLoverVRClothSimulation2 in this case)

10

Thanks for your pointing out about changing the mesh class!
I succeeded in connecting the target pin by creating Mesh Shorts used my original components!
Thanks to you, I have a better understanding of ue4 c++!