(derived from TWentieth of an Imperial Point
) is a typographical
measurement, defined as 1/20 of a typographical point
. One twip is 1/1440 inch or 17.639 µm when derived from the PostScript
point at 72 to the inch, and 1/1445.4 inch or 17.573 µm based on the printer's point at 72.27 to the inch.
Twips in computing
Twips are the default unit of measurement in Visual Basic
(version 6 and earlier, prior to VB.NET). There are 1440 twips in an inch and approximately 567 twips in a centimeter. This means that the relationship between twips and pixels depends upon screen resolution, as evidenced by the presence of functions such as TwipsPerPixelX and TwipsPerPixelY in Visual Basic 6.
Twips are a commonly used unit with Symbian OS bitmap images and are also used internally in SWF format.
Besides, twips are also used in Rich Text Formatting from Microsoft for platform-independent exchange.
- Sparke, Gerard; Ethington, Stephen (2000). Visual Basic Programmers' Workbook.