This enumeration determines the unit of measure for all quantities.
Values:
| IG_TW_UN_CENTIMETERS | Centimeters |
| IG_TW_UN_INCHES | Inches |
| IG_TW_UN_PICAS | Picas |
| IG_TW_UN_PIXELS | Pixels |
| IG_TW_UN_POINTS | Points |
| IG_TW_UN_TWIPS | Twips |
| ImageGear Professional DLL v17.1 for Windows |  |
| enumIGTWAINUnits | |
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| ImageGear Professional DLL v17.1 for Windows > API Reference Guide > TWAIN Component API Reference > TWAIN Component Enumerations > enumIGTWAINUnits |