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  "title" : "UniformTypeIdentifiers Constants"
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# UniformTypeIdentifiers Constants

## Topics

### Constants

[`extern UTType * const UTTypeAHAP;`](/documentation/UniformTypeIdentifiers/UTTypeAHAP)

### Macros

[`#define UT_AVAILABLE_BEGIN`](/documentation/UniformTypeIdentifiers/UT_AVAILABLE_BEGIN)

[`#define UT_AVAILABLE_END`](/documentation/UniformTypeIdentifiers/UT_AVAILABLE_END)

[`#define UT_EXPORT`](/documentation/UniformTypeIdentifiers/UT_EXPORT)

[`#define UT_EXPORT_CLASS`](/documentation/UniformTypeIdentifiers/UT_EXPORT_CLASS)

[`#define UT_SUBCLASSING_RESTRICTED`](/documentation/UniformTypeIdentifiers/UT_SUBCLASSING_RESTRICTED)


---

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