ToolTipService.HorizontalOffset Attached Property
Assembly: PresentationFramework (in PresentationFramework.dll)
A string representation of a Double value that is equal to or greater than 0.0 but that is smaller than Double.PositiveInfinity. This is interpreted as a device-independent unit (1/96th of an inch per unit) measurement. Strings do not have to explicitly include decimal points.
A Double value that is followed by one of these unit declaration strings: px, in, cm, pt.
px (default) is device-independent units (1/96th inch per unit)
in is inches; 1in==96px
cm is centimeters; 1cm==(96/2.54) px
pt is points; 1pt==(96/72) px