UE4 Plugin的封装 – 源码巴士

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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

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"
		}
	]
}

在这里插入图片描述

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()"));
}