How to insert text at cursor position?

[Claus Dreischer]

Hi,

I'm trying to perform the following:
There is a field in which the user can edit text.
There are some buttons which should help him insert some text/code at
the cursor position of that field.

How do i do that?
I looked at insert, cursor, selection, but none of these does the job.

So, which command am i looking for, or which code snipped does this task?

Regards,
	Claus.