我是C ++的新手,并试图从Unity3D迁移到虚幻引擎4。现在,我正在尝试编写我的第一个插件(UI插件和工具是我工作的重要部分),并坚持将OnClicked事件添加到SButton
我从创建独立窗口插件开始,然后添加一个按钮。

TSharedRef<SDockTab> FAssistLibModule::OnSpawnPluginTab(const FSpawnTabArgs& SpawnTabArgs)  {
FText WidgetText = FText::Format(
    LOCTEXT("WindowWidgetText", "Add code 111 222 to {0} in {1} to override this window's contents"),
    FText::FromString(TEXT("FAssistLibModule::OnSpawnPluginTab")),
    FText::FromString(TEXT("AssistLib.cpp"))
    );

FText ButtonLabel = FText::FromString("Button?");

return SNew(SDockTab)
    .TabRole(ETabRole::NomadTab)
    [
        // Put your tab content here!
        SNew(SVerticalBox)
        +SVerticalBox::Slot().VAlign(VAlign_Top)
        [
            SNew(STextBlock)
            .Text(WidgetText)
        ]
        +SVerticalBox::Slot().VAlign(VAlign_Top)
        [
            SNew(SButton)
            .Text(ButtonLabel)
            .OnClicked(this, &FAssistLibModule::CollectBlueprintsButtonClicked)
        ]

    ];}


并在编译UE后给我这个错误

Info Compiling game modules for hot reload
Info Performing 2 actions (4 in parallel)
Info Module.MyModule.cpp
Info c:\program files (x86)\epic games\4.13\engine\source\runtime\core\public\delegates\DelegateSignatureImpl.inl(181): error C2039: 'AsShared': is not a member of 'FMyModuleModule'
Error D:\dev\repos\assist-lib-ue4\Plugins\MyModule\Source\MyModule\Public\MyModule.h(10) : note: see declaration of 'FMyModuleModule'
Info C:\Program Files (x86)\Epic Games\4.13\Engine\Source\Runtime\Slate\Public\Widgets\Input\SButton.h(54): note: see reference to function template instantiation 'TBaseDelegate<FReply> TBaseDelegate<FReply>::CreateSP<UserClass,>(UserClass *,FReply (__cdecl FMyModuleModule::* )(void))' being compiled
Info         with
Info         [
Info             UserClass=FMyModuleModule
Info         ]
Info C:\Program Files (x86)\Epic Games\4.13\Engine\Source\Runtime\Slate\Public\Widgets\Input\SButton.h(54): note: see reference to function template instantiation 'TBaseDelegate<FReply> TBaseDelegate<FReply>::CreateSP<UserClass,>(UserClass *,FReply (__cdecl FMyModuleModule::* )(void))' being compiled
Info         with
Info         [
Info             UserClass=FMyModuleModule
Info         ]
Error D:\dev\repos\assist-lib-ue4\Plugins\MyModule\Source\MyModule\Private\MyModule.cpp(89) : note: see reference to function template instantiation 'SButton::FArguments::WidgetArgsType &SButton::FArguments::OnClicked<FMyModuleModule>(UserClass *,FReply (__cdecl FMyModuleModule::* )(void))' being compiled
Info         with
Info         [
Info             UserClass=FMyModuleModule
Info         ]
Info c:\program files (x86)\epic games\4.13\engine\source\runtime\core\public\delegates\DelegateSignatureImpl.inl(181): error C2672: 'StaticCastSharedRef': no matching overloaded function found
Info c:\program files (x86)\epic games\4.13\engine\source\runtime\core\public\delegates\DelegateSignatureImpl.inl(181): error C2672: 'TBaseDelegate<FReply>::CreateSP': no matching overloaded function found
Info ERROR: UBT ERROR: Failed to produce item: D:\dev\repos\assist-lib-ue4\Plugins\MyModule\Binaries\Win64\UE4Editor-MyModule-6676.dll
Info Total build time: 46.77 seconds


请帮助,我不了解发生了什么,并感谢您的任何建议!

最佳答案

FAssistLibModule看起来像是从IModuleInterface派生的,并且不是共享指针,因此您必须指定绑定OnClicked的方法。

我认为更换是正确的

OnClicked(this, &FAssistLibModule::CollectBlueprintsButtonClicked)



OnClicked(FOnClicked::CreateRaw(this, &FAssistLibModule::CollectBlueprintsButtonClicked))

要么

OnClicked_Raw(this, &FAssistLibModule::CollectBlueprintsButtonClicked)

检查此线程,我认为它很有用:https://forums.unrealengine.com/showthread.php?78289-Slate-button-causes-the-editor-to-hang-when-instantiated&p=343287&viewfull=1#post343287

关于c++ - 虚幻引擎4 CPP:'AsShared':不是'MyModule'的成员,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/40459104/

10-09 13:35