Gets the attributes applied to a range of text from an Text object.
The text attributes correspond to CSS attributes where possible.
| this |
a pointer to the Text object to query. |
| offset |
a int indicating the offset from which the attribute search is based. |
| start_offset |
a int pointer indicating the start of the desired text range. |
| end_offset |
a int pointer indicating the first character past the desired range. |
|
a GenericSet describing the attributes at the given character offset. |