SignalSlot(3)         User Contributed Perl Documentation        SignalSlot(3)



NNNNAAAAMMMMEEEE
       Tk::SignalSlot - An alternative to Tk::bind

SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
           use Tk::SignalSlot;

           $w->connect(’<1>’ => \&callback1);
           $w->connect(’<1>’ => \&callback2);

           my $id = $w->connect(’<<Event>>’ => \&callback3);
           ...
           $w->disconnect($id) if $w->is_connected($id);


DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
       TTTTkkkk::::::::SSSSiiiiggggnnnnaaaallllSSSSllllooootttt provides an alternative to Tk::bind that is more similar
       to Qt’s signal/slot mechanism. The main idea is that multiple callbacks
       can now be bound to one event. This allows for a more modular and
       object-oriented approach to Tk::bind which results in simpler, and eas-
       ier to maintain code.

       Please see the section on "RESTRICTIONS" for some important informa-
       tion.

MMMMEEEETTTTHHHHOOOODDDDSSSS
       TTTTkkkk::::::::SSSSiiiinnnnggggaaaallllSSSSllllooootttt exports three new methods into the TTTTkkkk:::::::: namespace:

       _$_w_i_d_g_e_t->ccccoooonnnnnnnneeeecccctttt(_e_v_e_n_t, _c_a_l_l_b_a_c_k)
           This method connects the given callback to the event. This means
           that when the event is triggered, this callback will be executed.
           Any number of callbacks can be connected to any one event. When the
           event fires, all connected callbacks will execute in the order they
           were connected. _e_v_e_n_t is any valid Tk event, and _c_a_l_l_b_a_c_k is any
           valid Tk callback.

           Upon success, this method returns a unique ID that can be used in
           the _dd_ii_ss_cc_oo_nn_nn_ee_cc_tt_((_)) method below.

       _$_w_i_d_g_e_t->ddddiiiissssccccoooonnnnnnnneeeecccctttt(_I_D);
           Given a valid ID (returned by the _cc_oo_nn_nn_ee_cc_tt_((_)) mmmmeeeetttthhhhoooodddd), this method
           disconnects the associated callback from the event.  Obviously,
           this means that when the event fires, this callback will not be
           executed.

       _$_w_i_d_g_e_t->iiiissss____ccccoooonnnnnnnneeeecccctttteeeedddd(_I_D);
           Returns 1 if the given ID is that of a validly connected callback.
           Otherwise, returns 0;

RRRREEEESSSSTTTTRRRRIIIICCCCTTTTIIIIOOOONNNNSSSS
       If you decide to use TTTTkkkk::::::::SSSSiiiiggggnnnnaaaallllSSSSllllooootttt, then you should stick with it
       thoroughtout your program. Intermixing TTTTkkkk::::::::SSSSiiiiggggnnnnaaaallllSSSSllllooootttt with TTTTkkkk::::::::bbbbiiiinnnndddd can
       have some unpredictable effects since TTTTkkkk::::::::SSSSiiiiggggnnnnaaaallllSSSSllllooootttt uses TTTTkkkk::::::::bbbbiiiinnnndddd
       internally.

BBBBUUUUGGGGSSSS
       None so far.

AAAAUUUUTTTTHHHHOOOORRRR
       AAAAllllaaaa QQQQuuuummmmssssiiiieeeehhhh <aqumsieh@cpan.org>

CCCCOOOOPPPPYYYYRRRRIIIIGGGGHHHHTTTT
       Copyright (c) 2006 Ala Qumsieh. All rights reserved.

       This program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.



3rd Berkeley Distribution         perl v5.6.1                    SignalSlot(3)