Twip

<h2 id="in-computing">In computing</h2>
Twips are screen-independent units to ensure that the proportion of screen elements are the same on all display systems. A twip is defined as being 1⁄1440 of an inch (approximately 17.64 μm).
A <a href="/facts/Pixel/UzwBvXBV">pixel</a> is a screen-dependent unit, standing for 'picture element'. A pixel is a dot that represents the smallest graphical measurement on a screen.
Twips are the default unit of measurement in <a href="/facts/Visual_Basic/7QMXM6fP">Visual Basic</a> (version 6 and earlier, prior to VB.NET). Converting between twips and screen pixels is achieved using the TwipsPerPixelX and TwipsPerPixelY properties<a class="footnote-ref" id="fnref:3" href="#fn:3">3</a> or the ScaleX and ScaleY methods.<a class="footnote-ref" id="fnref:4" href="#fn:4">4</a>
Twips can be used with <a href="/facts/Symbian/gbRl35V9">Symbian OS</a> bitmap images for automatic scaling from bitmap pixels to device pixels.<a class="footnote-ref" id="fnref:5" href="#fn:5">5</a> They are also used in <a href="/facts/Rich_Text_Format/hsVH9Jot">Rich Text Format</a> from Microsoft for platform-independent exchange and they are the base length unit in <a href="/facts/OpenOffice.org/561WcNgg">OpenOffice.org</a> and its <a href="/facts/Fork_(software_development)/D6khxhpr">fork</a> <a href="/facts/LibreOffice/MInj5kF7">LibreOffice</a>.
<a href="/facts/Adobe_Flash/3Lrp9JuH">Flash</a> internally specifies most sizes in units it calls twips, but which are really 1⁄20 of a logical pixel,<a class="footnote-ref" id="fnref:6" href="#fn:6">6</a> which is 3⁄4 of an actual twip.<a class="footnote-ref" id="fnref:7" href="#fn:7">7</a>

<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Himetric/NNDDpBS8">Himetric</a></li></ul>

<ul><li>Sparke, Gerard; Etherington, Stephen (2000). Visual Basic Programmers' Workbook. Pearson Education Australia. <a href="/facts/ISBN_(identifier)/15AdSPa9">ISBN</a> 978-1-74009-445-0.</li>
<li>MSDN Library — <a href="http://msdn.microsoft.com/en-us/library/aa314264(VS.60).aspx">com.ms.wfc.ui.CoordinateSystem.TWIP</a></li>
<li>Free On-Line Dictionary of Computing — <a href="http://foldoc.org/index.cgi?query=twip">twip</a></li>
<li>Foundation, ActionScript 3.0 Animation, Making Things Move! by Keith Peters <a href="/facts/ISBN_(identifier)/15AdSPa9">ISBN</a> 978-1-59059-791-0 (pbk)</li>
<li><a href="http://science-is-amazing.blogspot.com/2013/02/converting-twips-to-pixels-and-vice.html">Converting between twips and pixels - Ruby code</a></li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1">The Free On-line Dictionary of Computing:
 http://foldoc.org/twip <a href="http://foldoc.org/twip" target="_blank">http://foldoc.org/twip</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></li>
<li id="fn:2">"Word 2007: Rich Text Format (RTF) Specification, version 1.9.1". Microsoft Corporation. 19 March 2008. p. 8. Retrieved 12 March 2017. <a href="https://www.microsoft.com/en-us/download/details.aspx?id=10725" target="_blank">https://www.microsoft.com/en-us/download/details.aspx?id=10725</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></li>
<li id="fn:3">"TwipsPerPixelX, TwipsPerPixelY Properties". docs.microsoft.com. 23 August 2006. <a href="https://docs.microsoft.com/en-us/previous-versions/visualstudio/visual-basic-6/aa445741(v=vs.60)" target="_blank">https://docs.microsoft.com/en-us/previous-versions/visualstudio/visual-basic-6/aa445741(v=vs.60)</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></li>
<li id="fn:4">"ScaleX, ScaleY Methods". docs.microsoft.com. 23 August 2006. <a href="https://docs.microsoft.com/en-us/previous-versions/visualstudio/visual-basic-6/aa244168(v=vs.60)" target="_blank">https://docs.microsoft.com/en-us/previous-versions/visualstudio/visual-basic-6/aa244168(v=vs.60)</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></li>
<li id="fn:5">Dueder, Janelle (December 20, 2020). "Blitting and bitmaps - Symbian OS C++". 25 Years of Programming. <a href="https://www.25yearsofprogramming.com/c-2/blitting-and-bitmaps.html" target="_blank">https://www.25yearsofprogramming.com/c-2/blitting-and-bitmaps.html</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></li>
<li id="fn:6">"SWF FILE FORMAT SPECIFICATION" (PDF). Archived from the original (PDF) on 2016-11-20. <a href="https://web.archive.org/web/20161120220314/adobe.com/content/dam/Adobe/en/devnet/swf/pdf/swf-file-format-spec.pdf" target="_blank">https://web.archive.org/web/20161120220314/adobe.com/content/dam/Adobe/en/devnet/swf/pdf/swf-file-format-spec.pdf</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></li>
<li id="fn:7">Flash logical pixels are the same as HTML logical pixels, of which there are 96 to an inch, rather than 72 <a href="https://developer.mozilla.org/en-US/docs/Glossary/CSS_pixel" target="_blank">https://developer.mozilla.org/en-US/docs/Glossary/CSS_pixel</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></li>
</ol>

Twip open-in-new

Twip