ue4封装接口_ue4导出模型

大家好，又见面了，我是你们的朋友全栈君

原创文章，转载请注明出处。

本文带大家认识UE4插件/模块的使用方式Dll。既然为DLL，那么我们就可以对其封装，做到不公开cpp的目的。

- - 1>新建一个Plugin
  - 2>在plugin中创建一个Actor类，并在里面写一个UE4的Log输出函数。
  - 3>对其进行编译，编译出不同模式的dll出来
  - 4>在UE4场景中测试我们Log函数
  - 5>删除cpp文件
  - 6>在我们的.build.cs中添加不参数编译的参数 bUsePrecompiled = true;
  - 7>再到UE4场景中测试我们Log函数。发现也能成功
  - 8>注解

1>新建一个Plugin

参考下图

{ 

"FileVersion": 3,
"Version": 1,
"VersionName": "1.0",
"FriendlyName": "MyTest1",
"Description": "created by whitetian",
"Category": "Other",
"CreatedBy": "tianhuajian",
"CreatedByURL": "",
"DocsURL": "",
"MarketplaceURL": "",
"SupportURL": "",
"CanContainContent": true,
"IsBetaVersion": false,
"IsExperimentalVersion": false,
"Installed": false,
"Modules": [
{ 

"Name": "MyTest1",
"Type": "Runtime",
"LoadingPhase": "Default"
}
]
}

2>在plugin中创建一个Actor类，并在里面写一个UE4的Log输出函数。

MYTEST1_API等价于#define MYTEST1_API DLLEXPORT等价于调用
__declspec(dllexport)
__declspec(dllimport)
// DLL export and import definitions
#ifndef DLLEXPORT
#define DLLEXPORT
#define DLLIMPORT
#endif

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "MyActor.generated.h"
/** * */
UCLASS()
class MYTEST1_API AMyActor : public AActor
{ 

GENERATED_BODY()
public:
UFUNCTION(BlueprintCallable)
void MyPrint();
};

// Copyright Epic Games, Inc. All Rights Reserved.
#include "MyActor.h"
void AMyActor::MyPrint()
{ 

GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Green, TEXT("AMyActor::MyPrint()"));
}