39 lines
1.2 KiB
Markdown
39 lines
1.2 KiB
Markdown
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# ConfigRestartRequired
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- **功能描述：** 使属性在设置里改变后弹出重启编辑器的对话框。
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- **使用位置：** UPROPERTY
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- **引擎模块：** Config
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- **元数据类型：** bool
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- **常用程度：** ★★★
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使属性在设置里改变后弹出重启编辑器的对话框。
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自然的，一般是用于真的需要重启编辑器的设置。
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## 测试代码：
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```cpp
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public:
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UPROPERTY(Config, EditAnywhere, BlueprintReadWrite, Category = ConfigRestartRequired, meta = (ConfigRestartRequired="true"))
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FString MyString_ConfigRestartRequired;
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```
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## 测试效果：
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## 原理：
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在SSettingsEditor生效，可见得是在UI窗口发生改变。然后弹出对话框。
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```cpp
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void SSettingsEditor::NotifyPostChange( const FPropertyChangedEvent& PropertyChangedEvent, class FEditPropertyChain* PropertyThatChanged )
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{
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static const FName ConfigRestartRequiredKey = "ConfigRestartRequired";
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if (PropertyChangedEvent.Property->GetBoolMetaData(ConfigRestartRequiredKey) || PropertyChangedEvent.MemberProperty->GetBoolMetaData(ConfigRestartRequiredKey))
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{
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OnApplicationRestartRequiredDelegate.ExecuteIfBound();
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}
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}
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```
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