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03-UnrealEngine/Gameplay/UObject/UnrealSpecifiers/Meta/RigVM/MenuDescSuffix/MenuDescSuffix.md

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+# MenuDescSuffix
+
+- **功能描述：** 标识FRigUnit在蓝图右键菜单项的名字后缀。
+- **使用位置：** USTRUCT
+- **引擎模块：** RigVMStruct
+- **元数据类型：** bool
+- **限制类型：** FRigUnit类型上
+- **常用程度：** ★★★
+
+标识FRigUnit在蓝图右键菜单项的名字后缀。
+
+## 测试代码：
+
+```cpp
+USTRUCT(meta = (DisplayName = "MyRigSuffix", MenuDescSuffix = "(MyVector)"))
+struct INSIDER_API FRigUnit_MyRigSuffix: public FRigUnit
+{
+	GENERATED_BODY()
+
+	RIGVM_METHOD()
+		virtual void Execute() override;
+public:
+	UPROPERTY(meta = (Input))
+	float MyFloat_Input = 123.f;
+
+	UPROPERTY(meta = (Output))
+	float MyFloat_Output = 123.f;
+};
+```
+
+## 测试效果：
+
+可见出现了"(MyVector)"的后缀。
+
+![Untitled](Untitled.png)
+
+## 原理：
+
+得到该数据，然后添加到DisplayName后面。
+
+```cpp
+FString CategoryMetadata, DisplayNameMetadata, MenuDescSuffixMetadata;
+Struct->GetStringMetaDataHierarchical(FRigVMStruct::CategoryMetaName, &CategoryMetadata);
+Struct->GetStringMetaDataHierarchical(FRigVMStruct::DisplayNameMetaName, &DisplayNameMetadata);
+Struct->GetStringMetaDataHierarchical(FRigVMStruct::MenuDescSuffixMetaName, &MenuDescSuffixMetadata);
+
+if(DisplayNameMetadata.IsEmpty())
+{
+	DisplayNameMetadata = Struct->GetDisplayNameText().ToString();
+}
+if (!MenuDescSuffixMetadata.IsEmpty())
+{
+	MenuDescSuffixMetadata = TEXT(" ") + MenuDescSuffixMetadata;
+}
+
+FText MenuDesc = FText::FromString(DisplayNameMetadata + MenuDescSuffixMetadata);
+```