Indicate the inversion of horizontal and vertical axes of the drawing surface.
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.
Assembly: PresentationCore (in PresentationCore.dll)
Text formatter clients usually invert the horizontal axis, or X-axis, of the drawing surface when performing right-to-left layout of text content.
In a less common case, a text formatter client may invert the vertical axis, or Y-axis, of the drawing surface to achieve the effect of having the coordinate origin at the bottom-left position of the screen. This is a useful technique when drawing certain types of graphs.