void pango_attr_list_change ( PangoAttrList* list, PangoAttribute* attr )
Insert the given attribute into the
It will replace any attributes of the same type on that segment and be merged with any adjoining attributes that are identical.
This function is slower than
for creating an attribute list in order (potentially
much slower for large lists). However,
pango_attr_list_insert() is not suitable for
continually changing a set of attributes since it
never removes or combines existing attributes.
The attribute to insert.
The instance takes ownership of the data, and is responsible for freeing it.