Retrieves the selection bound of the editable. start_pos will be filled
with the start of the selection and end_pos with end. If no text was
selected both will be identical and FALSE will be returned.
Note that positions are specified in characters, not bytes.
Retrieves the selection bound of the editable. start_pos will be filled with the start of the selection and end_pos with end. If no text was selected both will be identical and FALSE will be returned. Note that positions are specified in characters, not bytes.