Each uninterpretable character in a field is contained within a FieldChar that is defined by a rectangle.
Top: the position of the top of the rectangle in pixels.
Left: the position of the left side of the rectangle in pixels.
Bottom: the position of the bottom of the rectangle in pixels.
Right: the position of the right side of the rectangle in pixels.
Object.Bottom
Object.Left
Object.Right
Object.Top
Integer