Set the (train time) key set for the character position specified by this character iterator. The key values are passed in as an array of System::Int32 in which each element is the key value of a character that may occur at this position.

Set the (train time) key set for the character position specified by this character iterator. The key values are passed in as a System::String in which each character corresponds to a member of the key set for this position. Note that this assumes that the character keys in the font correspond to Unicode code point values.