gtk:editable-insert-text (editable text pos)

editable -- a gtk:editable widget
text -- a string for the text to insert
pos -- an integer for the position where text is inserted

The integer with the position after the newly inserted text.

Inserts text into the contents of the editable widget, at position pos. Note that the pos value is in characters, not in bytes. The function returns the position after the newly inserted text.