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03-UnrealEngine/Gameplay/UObject/UnrealSpecifiers/Meta/Pin/HiddenByDefault/HiddenByDefault.md

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+# HiddenByDefault
+
+- **功能描述：** Struct的Make Struct和Break Struct节点中的引脚默认为隐藏状态
+- **使用位置：** USTRUCT
+- **引擎模块：** Pin
+- **元数据类型：** bool
+- **常用程度：** ★
+
+## 测试代码：
+
+```cpp
+//(BlueprintType = true, HiddenByDefault = , ModuleRelativePath = Struct/MyStruct_HiddenByDefault.h)
+USTRUCT(BlueprintType, meta = (HiddenByDefault))
+struct INSIDER_API FMyStruct_HiddenByDefault
+{
+	GENERATED_BODY()
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere)
+	float MyFloat;
+	UPROPERTY(BlueprintReadWrite, EditAnywhere)
+	FString MyString;
+};
+
+USTRUCT(BlueprintType)
+struct INSIDER_API FMyStruct_NotHidden
+{
+	GENERATED_BODY()
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere)
+	float MyFloat;
+	UPROPERTY(BlueprintReadWrite, EditAnywhere)
+	FString MyString;
+};
+```
+
+## 蓝图结果：
+
+![Untitled](Untitled.png)
+
+所谓隐藏，指的是在节点的细节面板里需要手动选择某些属性。而不是像默认的一样一开始就全部自动打开。
+
+![Untitled](Untitled%201.png)