Error-Handling Functions

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Equality and Conditional Functions

Basic Functions

Function-Handling Functions

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

Error-handling functions
Function	Description
(alertstring)	Displays an alert dialog box with the error or warning message passed as a string
(errorstring)	A user-definable error-handling function
(exit)	Forces the current application to quit
(quit)	Forces the current application to quit
(vl-catch-all-apply 'functionlist)	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-parg)	Determines whether an argument is an error object returned from vl-catch-all-apply

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