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I have the following user customisation declaration.

(defgroup px-initial-frame nil
  "Customisation group for position of initial frame."
  :group 'convenience)

(defcustom px-frame-pos (cons 8 8)
  "Position of initial frame."
  :type 'sexp
  :group 'px-initial-frame)

At some point I want to save some computed values. I aw using

(custom-declare-variable 'px-frame-pos (cons lft top))

Which is reporting

Debugger entered--Lisp error: (wrong-number-of-arguments (3 . 3) 2)
  custom-declare-variable(typex-frame-pos (1270 . 1223))

What is going wrong and how can this problem get fixed?

Dilna
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  • In custom-declare-variable you just miss the doc string. That is the mismatch in the number of arguments. Furthermore, you need the keyword arguments for :type and the :group. – Tobias Sep 18 '22 at 03:28
  • Right, I have to add a documentation string. Having already defined a defcustom, what is the appropriate command to change the value of a defcustom. I used custom-declare-variable but perhaps this declares the defcustom variable a second time. – Dilna Sep 18 '22 at 14:19

0 Answers0