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The B<Tk> module includes a default B<Tk::Error> subroutine
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that simply reports the error on stderr.
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An alternate definition is provided via :
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=head1 Tk::ErrorDialog
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An alternate definition is provided via:
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S< >C<require Tk::ErrorDialog;>
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the user a chance to see a stack trace showing where the
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This is an OO implementation of the Tcl/Tk command B<bgerror>, with a
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twist: since there is only one B<ErrorDialog> widget, you aren't required
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to invoke the constructor to create it; it will be created
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automatically when the first background error occurs. However, in
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order to configure the I<-cleanupcode> and I<-appendtraceback>
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B<ErrorDialog> options you must call the constructor and create it
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The B<ErrorDialog> object essentially consists of two subwidgets: a
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B<Dialog> widget to display the background error and a B<Text> widget
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for the traceback information. If required, you can invoke various
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widget methods to customize these subwidgets - their advertised names
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S< >I<$mw>-E<gt>B<ErrorDialog>(-cleanupcode => I<code>, -appendtraceback => I<bool>);
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$mw is a window reference.
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I<code> is a CODE reference if special post-background error
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processing is required (default is undefined). The callback subroutine
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is called with @_ having the same arguments that B<Tk::Error> was
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I<bool> is a boolean indicating whether or not to append successive
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tracebacks (default is 1, do append).
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=head2 Advertised ErrorDialog widgets
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I<error_dialog> is the Dialog widget reference.
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I<text> is the Text widget reference containing the traceback information.
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If B<after> or B<fileevent> are not invoked as methods of a widget
added
removed
pod/Error.pod
