Group Exception / Error Handling

Introduces control structure for BREAK or Break(). The BEGIN SEQUENCE statement introduces a control structure for handling runtime errors.

BEGIN SEQUENCE <SourceCode>... [BREAK [<Expression>]] <SourceCode>... [RECOVER [USING <VarName>]] <SourceCode>... END [SEQUENCE]

Interrupts execution of the current thread.

Break( [<Expression>] ) --> NIL

Retrieves the last operating system error code.

DosError( [<nNewOsErrorID>] ) --> nErrorID

Retrieves the textual description of an operating system error code.

DosErrorMessage( [<nOsErrorID>], [<cnLanguage>] ) --> cMessage

Class function of the Error Class.

Defines a code block to execute if a runtime error occurs.

ErrorBlock( [<bErrorHandler>] ) --> bLastErrorHandler

Determines the error code of the last graphic function called.

GraError( [<oPS>] ) --> nErrorCode