Task:

Notifies the application of an expression error found by the parser.

Activation:

Always active

Parameters:

lParam: Pointer to an error text

Return Value:

0

Hints:

As LlExprError() does not reliably return an incorrect formula after a call to LlPrintStart(), this event can be used to collect errors and present them to the user when LlPrintStart() fails because of formula errors.