class HexaPDF::Type::Annotations::Widget::AppearanceCharacteristics

The dictionary used by the /MK key of the widget annotation.

def perform_validation #:nodoc:

:nodoc: 
def perform_validation #:nodoc:
  super
  if key?(:R) && self[:R] % 90 != 0
    yield("Value of field R needs to be a multiple of 90")
  end
end