ue4 C++ 生成并弹出一个菜单

FGlobalSettingModule& GSettingMod = FModuleManager::LoadModuleChecked<FGlobalSettingModule>(TEXT("GlobalSetting"));

              FString userIdStr = FString::FromInt(GSettingMod.GetUserInfo().userId);

              FString modelUrl = _ItemModel->_ItemInfo.modelUrl;

              if (modelUrl.Find(userIdStr) == INDEX_NONE)

              {

                     return FReply::Unhandled();

              }

              FMenuBuilder MenuBuilder(true, nullptr);

              MenuBuilder.BeginSection("PathFolderMoveCopy", FText::FromString(TEXT("硬装操作")));

              {

                     MenuBuilder.AddMenuEntry(

                           FText::FromString(TEXT("删除")),

                           FText::FromString(TEXT("删除该选项")),

                           FSlateIcon(),

                           FUIAction(FExecuteAction::CreateLambda([this]() {DeleteThisData(); }))

                     );

              }

              MenuBuilder.EndSection();

              

              TSharedPtr< SWindow > Parent = FSlateApplication::Get().GetActiveTopLevelWindow();

              if (Parent.IsValid())

              {

                     FSlateApplication::Get().PushMenu(

                           Parent.ToSharedRef(),

                           FWidgetPath(),

                           MenuBuilder.MakeWidget(),

                           FSlateApplication::Get().GetCursorPos(),

                            FPopupTransitionEffect(FPopupTransitionEffect::ContextMenu)

                     );

              }