public enum AnnUnit  typedef NS_ENUM(NSInteger, LTAnnUnit) {LTAnnUnitUnit = 0,LTAnnUnitDisplay = 1,LTAnnUnitDocument = 2,LTAnnUnitSmartEnglish = 3,LTAnnUnitSmartMetric = 4,LTAnnUnitInch = 5,LTAnnUnitMillimeter = 6,LTAnnUnitPoint = 7,LTAnnUnitFeet = 8,LTAnnUnitYard = 9,LTAnnUnitMicrometer = 10,LTAnnUnitCentimeter = 11,LTAnnUnitMeter = 12,LTAnnUnitTwip = 13,LTAnnUnitPixel = 14,};
public enum AnnUnit public:enum class AnnUnit sealed
class AnnUnit(Enum):Unit = 0Display = 1Document = 2SmartEnglish = 3SmartMetric = 4Inch = 5Millimeter = 6Point = 7Feet = 8Yard = 9Micrometer = 10Centimeter = 11Meter = 12Twip = 13Pixel = 14CustomUnit = 15
| Value | Member | Description | 
|---|---|---|
| 0 | Unit | Specifies an annotation unit (1/720 of an inch). | 
| 1 | Display | Specifies 1/100 inch as the unit of measure. | 
| 2 | Document | Specifies 1/300 inch as the unit of measure. | 
| 3 | SmartEnglish | Specifies that measurement in "smart" English. A "smart" unit is a unit that can be automatically promoted to the next higher unit. The length displayed will be in the most appropriate unit. | 
| 4 | SmartMetric | Specifies that measurement is in "smart" metric. A "smart" unit is a unit that can be automatically promoted to the next higher unit. The length displayed will be in the most appropriate unit. | 
| 5 | Inch | Specifies the inch as the unit of measure. | 
| 6 | Millimeter | Specifies the millimeter as the unit of measure. | 
| 7 | Point | Specifies a printer's point (1/72 inch) as the unit of measure. | 
| 8 | Feet | Specifies feet as the unit of measure. | 
| 9 | Yard | Specifies the yard as the unit of measure. | 
| 10 | Micrometer | Specifies the micrometer (1/1000 millimeter) as the unit of measure. | 
| 11 | Centimeter | Specifies the centimeter as the unit of measure. | 
| 12 | Meter | Specifies the meter as the unit of measure. | 
| 13 | Twip | Specifies the twip (TWentIeth of a Point) as the unit of measure. | 
| 14 | Pixel | Specifies the pixel as the unit of measure. | 
| 15 | CustomUnit | Specifies a custom unit of measurement. | 
For Custom units, use AnnUnitConverter.CustomUnitPerInch and AnnUnitConverter.CustomUnitAbbreviation to change the default values and specify the actual unit value and abbreviation.
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