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                    Constantes BtUnits | 
            
Many of the PageSetup properties return numerical values, such as the length of an item or a page margin size. These properties take a BtUnits constant to specify the unit of measurement used in determining the numerical values.
The following constants are available:
| 
                     Constante  | 
                
                     Description  | 
            
|---|---|
| 
                     BtUnitsCurrent  | 
                
                        | 
            
| 
                     BtUnitsInches  | 
                
                     Uses inches as the default measurement units.  | 
            
| 
                     BtUnitCentimeters  | 
                
                     Uses centimeters as the default measurement units.  | 
            
| 
                     BtUnitsMillimeters  | 
                
                     Uses millimeters as the default measurement units.  |