Edit Box/Text Area Selection API

I just wanted to pass the API I had in mind for selecting text in an
edit box or text area


To set the text
void selection(int start, int end)

To get the current selection
int selection_start()
int selection_end()

And also to get the currently selected text

std:wstring selection()
(which will return nothing if nothing is selected)

Let me know what you think.
Thanks, Chris