1Carp(3)               User Contributed Perl Documentation              Carp(3)
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NAME

6       Gtk2::Ex::Carp - GTK+ friendly "die()" and "warn()" functions.
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SYNOPSIS

9               use Gtk2::Ex::Carp;
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11               # these override the standard Perl functions:
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13               warn('i told you not to push that button!');
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15               die('an ignominious death');
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17
18               # new functions for showing extended error information:
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20               # like warn(), but shows a dialog with extra information
21               # in an expandable text entry:
22               worry($SHORT_MESSAGE, $EXTENDED_INFORMATION);
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24               # like worry(), but fatal:
25               wail($SHORT_MESSAGE, $EXTENDED_INFORMATION);
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DESCRIPTION

28       This module exports four functions, of which two override the standard
29       "die()" and "warn()" functions, and two which allow for extended error
30       reporting. When called, these functions display a user-friendly message
31       dialog window.
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33       The "die()" function in this module actually replaces the core "die()"
34       function, so any modules you've loaded may die will use former instead
35       of the latter. "die()" will also print the error message to "STDERR"
36       and will exit the program (with the appropriate exit code) when the
37       dialog is dismissed.
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39       The "warn()" function will also print a message to "STDERR", but will
40       allow the program to continue running when the dialog is dismissed.
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42   EXTRA FUNCTIONS
43       The "worry()" and "wail()" functions behave just like "warn()" and
44       "die()", respectively, except that they allow you to provide additional
45       information. A second argument, which can contain additional error
46       information, is used to fill a text box inside an expander.
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48   HANDLING GLIB EXCEPTIONS
49       This module also installs "warn()" as a Glib exception handler. Any
50       unhandled exceptions will be presented to the user in a warning dialog.
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52   PROGRAM FLOW
53       Note that all the functions in this module create dialogs and use the
54       "run()" method, so that the standard Glib main loop is blocked until
55       the user responds to the dialog.
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LOCALISATION ISSUES

58       The dialogs that are created use the standard GNOME layout, with a bold
59       "title" label above the main message. The text for these labels is
60       taken from two package variables that may be altered to suit your
61       needs:
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63               $Gtk2::Ex::Carp::FATAL_ERROR_MESSAGE            = 'Fatal Error';
64               $Gtk2::Ex::Carp::WARNING_ERROR_MESSAGE          = 'Warning';
65               $Gtk2::Ex::Carp::EXTENDED_EXPANDER_LABEL        = 'Details:';
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67       However, if the "Locale::gettext" module is available on the system,
68       and your application uses it, these variables will be automagically
69       translated, as long as these default values are translated in your .mo
70       files.
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SEE ALSO

73       Gtk2, Carp, Locale::gettext
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AUTHOR

76       Gavin Brown (gavin dot brown at uk dot com)
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79       (c) 2005 Gavin Brown. All rights reserved. This program is free
80       software; you can redistribute it and/or modify it under the same terms
81       as Perl itself.
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85perl v5.34.0                      2021-07-22                           Carp(3)
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