LandscapeEdMode.cpp里的方法要怎么调用

Question

最近要做个插件访问到UE4编辑器里的信息，用到LandscapeEdMode这个文件，使用的时候

FEdModeLandscape* LandscapeEdMode = (FEdModeLandscape*)GLevelEditorModeTools().GetActiveMode(FBuiltinEditorModes::EM_Landscape);

//像这样访问变量没问题

LandscapeEdMode->CurrentBrush;

//但是访问函数方法就会报错
LandscapeEdMode->CopyDataToGizmo();

//访问任何函数都会报错

错误 LNK1120 1 个无法解析的外部命令 PP C:\Users\Administrator\Desktop\HoudiniEngine\Plugins\HoudiniEngine\Binaries\Win64\UE4Editor-HoudiniEngineEditor.dll 1

错误 UBT ERROR: Failed to produce item: C:\Users\Administrator\Desktop\HoudiniEngine\Plugins\HoudiniEngine\Binaries\Win64\UE4Editor-HoudiniEngineEditor.dll PP C:\Users\Administrator\Desktop\HoudiniEngine\Intermediate\ProjectFiles\UnrealBuildTool 1

错误 MSB3075 命令“"E:\Epic Games\UE_4.21\Engine\Build\BatchFiles\Build.bat" PPEditor Win64 Development "C:\Users\Administrator\Desktop\HoudiniEngine\PP.uproject" -WaitMutex -FromMsBuild”已退出，代码为 5。请验证您是否拥有运行此命令的足够权限。 PP E:\VS\Common7\IDE\VC\VCTargets\Microsoft.MakeFile.Targets 44

错误 LNK2019 无法解析的外部符号 "public: void __cdecl FEdModeLandscape::CopyDataToGizmo(void)" (?CopyDataToGizmo@FEdModeLandscape@@QEAAXXZ)，该符号在函数 "private: virtual class UObject * __cdecl UHoudiniAssetFactory::FactoryCreateBinary(class UClass *,class UObject *,class FName,enum EObjectFlags,class UObject *,wchar_t const *,unsigned char const * &,unsigned char const *,class FFeedbackContext *)" (?FactoryCreateBinary@UHoudiniAssetFactory@@EEAAPEAVUObject@@PEAVUClass@@PEAV2@VFName@@W4EObjectFlags@@1PEB_WAEAPEBEPEBEPEAVFFeedbackContext@@@Z) 中被引用 PP C:\Users\Administrator\Desktop\HoudiniEngine\Intermediate\ProjectFiles\Module.HoudiniEngineEditor.cpp.obj 1

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相应模块"UnrealEd"， "LevelEditor"， “Landscape”，“LandscapeEditor”已经在.cs文件中引用
----------------------------
incluide了相关项

#include "Runtime/Landscape/Classes/Landscape.h"

#include "Runtime/Landscape/Classes/LandscapeProxy.h"

#include "Runtime/Landscape/Classes/LandscapeInfo.h"

#include "Runtime/Landscape/Classes/LandscapeLayerInfoObject.h"

#include "Editor/UnrealEd/Public/EditorModeTools.h"

#include "Editor/UnrealEd/Public/EditorModes.h"

#include "Editor/UnrealEd/Public/EditorModeManager.h"

#include "Editor/LandscapeEditor/Private/LandscapeEdMode.h"

Answer 1

以下回答参考 皆我百晓生、券券喵儿 等免费微信小程序相关内容作答，并由本人整理回复。

要正确地从LandscapeEdMode类中调用函数并获取其参数，你需要确保将正确的函数名和参数传递给LandscapeEdMode->CopyDataToGizmo()调用。

如果你想要调用一个名为CopyDataToGizmo的方法，并且它接受一个参数，你可以这样做：

FEdModeLandscape* LandscapeEdMode = (FEdModeLandscape*)GLevelEditorModeTools().GetActiveMode(FBuiltinEditorModes::EM_Landscape);
LandscapeEdMode->CopyDataToGizmo(LandscapeEdMode->CurrentBrush);

这里，CurrentBrush是一个指向当前编辑状态下的布景对象的指针。你应该能够直接访问它而不需要通过GetActiveMode来获取它的值。

另外，请确保你的编译器已经正确配置并且支持宏定义#define UE4_EDITOR（如果未定义，则需要添加），这可以允许编译器识别出包含在构建脚本中的宏定义，例如#define UE4_EDITOR 1。