Move crosshairs in edit boxes?

So, I have an off screen edit box that affects a string in the middle of the frame to be whatever the player type.

Since there's no way to display a crosshair in a string, I want to set the crosshair to always be at the very end of the edit box, so the player can't press the left and right arrow keys to move it. Is there any way to do this?

Quote from bubba_damage

There is a unicode character Please login to see this link. just getting to show as a string is a another story
but any how about using a font? (there's a lot of differant custom fonts choose from on the web)
and use alterable values to change the condition of a movement 0=on 1=off

I don't think you understand the question. When the player activates the text edit box, they can't type without holding the right arrow key for a while since the crosshair appears at the beginning of the text string rather than the end. I'm not looking to make the crosshair visible, I'm looking to move it.