Supported measurement units. 
Enumerations for all supported measurement units 
- Enumerator: 
 
| eMUDefault  | 
 =0: Use units from the given device context (DC)  
In the context of quiet zone this value mostly means "no quiet zone")  
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| eMUPixel  | 
 =1: Values are specified in Pixels (not used for bar width reduction)  
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| eMUMM  | 
 =2: Values are specified in Millimeter (mm)  
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| eMUMils  | 
 =3: Values are specified in mils  
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| eMUInch  | 
 =4: Values are specified in Inch  
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| eMUModules  | 
 =5: Only valid in the context of quiet zones:  
Quiet-Zone is specified in number of modules  
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| eMUPercent  | 
 =6: Only valid in the context of bar width reduction:  
The Bar Width reduction is specified in percent of the module width. The value is given in percent (0 ... 100).  
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