Print Page - How to access a TK-variable from newlisp?

Title: How to access a TK-variable from newlisp?
Post by: HPW on October 24, 2003, 11:38:35 PM

I want to access TK-variables

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> (tk "set test 123")
"123"
> (tk "set test")

>

When I do the second I get a message window 'can't read "test": no such variable'. On a native TCL-console it works in that way. It respond with the content of the variable. Would be usefull to access all the global vars 'Ide(xxxxxxx)'

Any hints?

Title:
Post by: HPW on October 26, 2003, 05:57:46 AM

~~Quote~~Thanks for posting all these improvements in the Tcl.Tk code. About setting variables in Tcl/Tk: I just try to avoid it and work with the return values from the 'tk' statement stored in LISP variables.

To declare Tcl variables from newLISP, I think you would have to create a child interpreter. But I never went much into Tcl/Tk and newlisp-tk.tcl is the only program in Tcl/Tk I have ever written.

I have only used the 'tk' call. And I want not declare them, I want read and write to existing vars. Ok my test was a new var, but it also works not with the existing one's from the config-file.

Title:
Post by: Lutz on October 26, 2003, 10:31:20 AM

try this:

(tk "global Ide; set Ide(fontSize)")

or this:

(tk "global Ide; set Ide(fontSize) 16")

Then open a editor/browser window ;)

Lutz

Title:
Post by: HPW on October 26, 2003, 12:38:34 PM

Lutz,

thanks for the hint.

I had thought that it could be a problem with the scope of the vars.

I had tried around, but with no satisfying solution.

So this is short and easy.

Fits very good in the concept of newlisp. :-)

newLISP Fan Club

Forum => Anything else we might add? => Topic started by: HPW on October 24, 2003, 11:38:35 PM