58 lines
2.0 KiB
HTML
58 lines
2.0 KiB
HTML
<HTML>
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<HEAD><TITLE>QuickBASIC 3.0 - Long Entry</TITLE></HEAD>
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<A HREF="ng1d78d.html">[<<Previous Entry]</A>
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<PRE>
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<B>ON ERROR Enable Error Trapping</B>
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<B>ON</B> <B>ERROR</B> <B>GOTO</B> {<U>linenum</U> | <U>linelabel</U>}
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Enables the trapping of error conditions and specifies the beginning
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line of an error-trapping routine.
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<U>linenum</U> The first line of an error-handling routine. Setting
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linenum to 0 disables trapping.
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<U>linelabel</U> A label identifying the first line of an error-handling
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routine.
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----------------------------------------------------------------------
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<B>Notes:</B> {<U>linenum</U> | <U>linelabel</U>} must be defined at the main program
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level.
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It is recommended that an ON ERROR GOTO 0 statement be
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included within an error-handling routine to handle
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unidentifiable error conditions.
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While an error-handling routine is being executed, error
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trapping (and all other event trapping) is disabled. If an
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error occurs during this time, QuickBASIC halts program
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execution and displays an error message.
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An error-handling routine must end with a RESUME
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statement.
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When compiling a QuickBASIC program that uses ON ERROR and
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RESUME, you must use the On Error (/e) and Resume Next
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(/x) compile options.
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</PRE>
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<HR>
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<B>See Also:</B>
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<A HREF="ng10563.html">ERL</A>
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<A HREF="ng107b9.html">ERR</A>
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<A HREF="ng108e8.html">ERROR</A>
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<A HREF="ng2b195.html">RESUME</A>
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<HR>
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This page created by ng2html v1.05, the Norton guide to HTML conversion utility.
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Written by <A HREF="http://www.acemake.com/hagbard">Dave Pearson</A>
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