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When you select, for example, a Size of 8 in a Font Dialog for Microsoft Sans Serif, it returns a font that .NET displays as having a size 8.25?
Why is this exactly?
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To set your computer's displayed font size to default: Browse to: Start>Control Panel>Appearance and Personalization>Display. Click Smaller - 100% (default). Click Apply.
Usually, the default font is Calibri or Times New Roman, and the default font size is 11 or 12 point.
A point is 1/72 of an inch, so the font should be 8/72 (0.111111) inches high. Windows assumes a standard display is 96 DPI, unless you take pains to configure it otherwise. That means it tries to create a font that's 10.66667 pixels high; it rounds to 11 pixels. When you convert that back to points ((11 / 96) * 72), it becomes 8.25.
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This is most likely due to the way the Windows Font Mapper calculates font sizes. There is a slight difference between pixel heights of font cells and normal "points" @ 1/72 of an inch.
More info here: http://msdn.microsoft.com/en-us/library/ms969909.aspx
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