Assembly: PresentationCore (in PresentationCore.dll)
|A unit value that is relative to the font used for the TextDecoration. If the decoration spans multiple fonts, an average recommended value is calculated. This is the default value.|
|A unit value that is relative to the em size of the font. The value of the offset or thickness is equal to the offset or thickness value multiplied by the font em size.|
|A unit value that is expressed in pixels.|
The following example shows how to set the PenThicknessUnit property to .