You are using symbolic references to refer to your variables, and variables declared with my do not have a symbol table entry. (see Symbolic_References).

You could look at PadWalker to get access to lexical variables.

Clint

Update Thanks to ikegami for pointing out that you are not using symbolic references. I misread the code.

Presumably then, your my variables are being declared within other subs, so they are not in the same scope as your display_init sub, and so are not visible.

In reply to Re: issues with eval (get a variable's value) by clinton
in thread issues with eval (get a variable's value) by squale

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