WPF analogy for 'em' unit

Question

What is the WPF analogy for the CSS em unit?

Answer 1

AFAIK, there isn't one right now. But you can make your desire for this known here.

One alternative (and I don't know if this is possible either) would be to measure how big the desired font is, then take that as your "ems" unit, then scale using those "units" instead.

Answer 2

<ScaleTransform ScaleX="1.2" ScaleY="1.2"></ScaleTransform>

seems to be more or less the 1.2em alternative.

Answer 3

Unfortunately, there is no equivalent in WPF of the em unit. All your font sizes, etc are always set in Pixels.

Answer 4

em size is the width of the uppercase letter M in the current font, there is no font-dependent sizing method in Wpf

Btw, WPF uses "device independent pixels" that are always 1/96 of an inch (because that's one pixels on today's monitors) so:

• 1 pixel is 1/96 inches
• 96 pixels in an inch
• 1.33333 pixels is a point
• 3.779 pixels is a mm

Those are extremely inaccurate on monitors because almost all monitors report a 96DPI resolution and ignore the real pixel size, but are very useful when printing.