Op 5-4-2012 18:53, Danny Yoo schreef:
I have a struct which contains text and the place of a cursor.
The place are 2 strings which contains the character on the left and on the
right of the cursor.

Now I have to display this.
But I wonder how I can set the cursor on the right place when I can't know
the numbers where between the cursor is placed.
I know that the characters are 11 pixels.

I think we need more information, as I'm still a little confused.  Can
you give a few examples of the struct values you are using?  It's a
bit unclear from the prose alone what these values look like.


By "cursor", can you be more specific?  Do you mean a cursor on a
racket/gui text% instance?  Do you mean a cursor that refers to the
"graphical editor" example in HtDP 2ed?

     http://www.ccs.neu.edu/home/matthias/HtDP2e/htdp2e-part1.html#(part._edit1)

We need more context because there's not enough information in the
question to tell what you're trying to do yet.


Good luck!


Yes, I mean that exercise.

Roelof

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