Error-Handling Functions Reference (AutoLISP)

The following table provides summary descriptions of the AutoLISP error-handling functions.

Error-handling functions
Function	Description
(*error* string)	A user-definable error-handling function
(*pop-error-mode*)	Error-handling function that ends the previous call to *push-error-using-command* or *push-error-using-stack*
(*push-error-using-command*)	Error-handling function that indicates the use of the command function within a custom *error* handler
(*push-error-using-stack*)	Error-handling function that indicates the use of variables from the AutoLISP stack within a custom *error* handler
(alert string)	Displays an alert dialog box with the error or warning message passed as a string
(exit)	Forces the current application to quit
(quit)	Forces the current application to quit
(vl-catch-all-apply 'function list)	Passes a list of arguments to a specified function and traps any exceptions
(vl-catch-all-error-message error-obj)	Returns a string from an error object
(vl-catch-all-error-p arg)	Determines whether an argument is an error object returned from vl-catch-all-apply