ActiveState!

ActivePerl Documentation
Table of Contents

(Usage Statistics)
(about this ver)


* Getting Started
    * Welcome To ActivePerl
    * Release Notes
    * Readme
    * ActivePerl Change Log
* Install Notes
    * Linux
    * Solaris
    * Windows
* ActivePerl Components
    * Overview
    * PPM
    * Windows Specifics
       * OLE Browser
       * PerlScript
       * Perl for ISAPI
       * PerlEZ
* ActivePerl FAQ
    * Introduction
    * Availability & Install
    * Using PPM
    * Docs & Support
    * Windows Specifics
       * Perl for ISAPI
       * Windows 9X/NT/2000
       * Quirks
       * Web Server Config
       * Web programming
       * Programming
       * Modules & Samples
       * Embedding & Extending
       * Using OLE with Perl
* Windows Scripting
    * Active Server Pages
    * Windows Script Host
    * Windows Script Components

Core Perl Documentation


* perl
* perlfaq
* perltoc
* perlbook

* perlsyn
* perldata
* perlop
* perlreftut
* perldsc
* perllol

* perllexwarn
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* perlrun
* perlfunc
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* perlvar
* perlsub
* perlmod
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* perlstyle
* perlmodlib
* perlmodinstall
* perltrap
* perlport
* perlsec

* perlref
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* perlform
* perllocale
* perlunicode

* perlboot
* perltoot
* perltootc
* perlobj
* perlbot
* perltie

* perlipc
* perlnumber
* perlfork
* perlthrtut

* perldiag
* perlfaq1
* perlfaq2
* perlfaq3
* perlfaq4
* perlfaq5
* perlfaq6
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* perlfaq8
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Pragmas


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* vars
* warnings

Libraries


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    * PPD
    * PPMConfig
    * ValidatingElement
* XSLoader

 Tk::Derived - Base class for widgets derived from others


NAME

Tk::Derived - Base class for widgets derived from others


SUPPORTED PLATFORMS

  • Linux
  • Solaris
  • Windows
This module is not included with the standard ActivePerl distribution. It is available as a separate download using PPM.

SYNOPSIS

  package Tk::Whatever;
  require Tk::Something;
  require Tk::Derived;
  @ISA = qw(Tk::Derived Tk::Something);
  sub Populate
  {
   my ($cw,$args) = @_;
   ...
   $cw->SUPER::Populate($args);
   $cw->ConfigSpecs(...);
   ...
  }


DESCRIPTION

Tk::Derived is used with perl5's multiple inheritance to override some methods normally inherited from Tk::Widget.

Tk::Derived should precede any Tk widgets in the class's @ISA.

Tk::Derived's main purpose is to apply wrappers to configure and cget methods of widgets to allow the derived widget to add to or modify behaviour of the configure options supported by the base widget.

The derived class should normally override the Populate method provided by Tk::Derived and call ConfigSpecs to declare configure options.

The public methods provided by Tk::Derived are as follows:

->ConfigSpecs(-key => [kind, name, Class, default], ...)


SEE ALSO

Tk::ConfigSpecs Tk::mega

 Tk::Derived - Base class for widgets derived from others