Manipulating Style Run Attributes

ATSUI provides the following functions for manipulating style run attributes in a style object:

ATSUSetAttributes sets style run attribute values in a style object.
ATSUGetAttribute obtains a style run attribute value from a style object.
ATSUGetAllAttributes obtains style run attribute information for a style object.
ATSUClearAttributes removes previously set style run attributes from a style object.
ATSUCalculateBaselineDeltas calculates the optimal baseline positions in a style object.