Retrieves a sequence of characters.
The characters that are retrieved are those characters at positions from start_pos up to, but not including end_pos
. If end_pos is negative, then the characters retrieved are those characters from start_pos to the end of
the text.
Note that positions are specified in characters, not bytes.
| this |
a Editable |
| start_pos |
start of text |
| end_pos |
end of text |
|
a pointer to the contents of the widget as a string. This string is allocated by the Editable implementation and should be freed by the caller. |