(alert)

(alloc) →

(alert string)

Display this alert for the user.

This function displays a dialog box with your string (a custom message) and the OK button. To display more than one line of text, use the new-line character (\n) in the string. to separate lines of text.

Examples

Code	Returns
(alert "You must select an option")	You must select an option
(alert "Select an option: \n M or F")	Select an option: M or F

NOTE Since all dialog boxes must accommodate small, 640 x 480-pixel displays, it's a good idea to keep the alert text brief and to the point.

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(*error* string)

LISP Compatibility

Programming Overview of LISP (LISt Processing) Language