Yeah, Log::Log4perl::Appender::String isn't quite right for the job, and text widget doesn't support -textvariable

Here is a start, run with it :)

use strict; use warnings;
use Tkx;
use Log::Log4perl;

Main( @ARGV );
exit( 0 );


sub Main {
    $Tkx::TRACE=64;
    Tkx::package_require('tile');
    Tkx::ttk__setTheme('xpnative');#Tkx::tile__setTheme('xpnative');



    my $logger = Log::Log4perl->get_logger;
    $logger ->level( $Log::Log4perl::INFO ); ## HA!
    my $appender = Log::Log4perl::Appender::String2->new;
    $logger->add_appender($appender);
    
    
    
    
    my $mw = Tkx::widget->new(".");

    my $t = $mw->new_text(
        -padx => 5,
        -pady => 5,
#~         -textvariable => $appender->string_ref, # text doesn't have
+ textvariable, grr
        -background => "white",
    ); $t->g_pack;
    $appender->tktext( $t ); # text doesn't have textvariable, grr
    
    
    
    my $b = $mw->new_ttk__button(
        -text => 'Hello, world',
        -command => sub {
            $logger->info("hi");
#~             $mw->g_destroy;
        },
    ); $b->g_pack;

    $b->configure();
    $logger->info("it begins");
    Tkx::MainLoop();


    
}

BEGIN {
#~     $INC{'TextTextVariable.pm'} = __FILE__;
## http://wiki.tcl.tk/1917# Text variable for text widget

    $INC{'Log/Log4perl/Appender/String2.pm'} = __FILE__;
    package Log::Log4perl::Appender::String2;
    use Log::Log4perl::Appender;
    our @ISA = qw(Log::Log4perl::Appender);

    ##################################################
    # Log dispatcher writing to a string buffer
    ##################################################

    ##################################################
    sub new {
    ##################################################
        my $proto  = shift;
        my $class  = ref $proto || $proto;
        my %params = @_;

        my $self = {
            name      => "unknown name",
            string    => "",
            %params,
        };

        bless $self, $class;
    }

    ##################################################
    sub log {   
    ##################################################
#~         my $self = shift;
#~         my %params = @_; # copied from Log::Log4perl::Appender::Str
+ing, wtf
        my ($self, $p, $category, $level, $cache) = @_;
        my %params = %$p;
        if( my $status_text = $self->{tktext} ){
            warn "wtf is wtf ";
            # text control has to be enabled to write to it.  
            $status_text->configure(-state => "normal");

            $status_text->insert("end", $params{message} );
            $status_text->see("end");

            # Don't want the user editing this...
            $status_text->configure(-state => "disabled");
            eval { $status_text->update(); 1} or eval { Tkx::update();
+ };
        } else {
            $self->{string} .= $params{message};
        }
    }

    ##################################################
    sub string {   
    ##################################################
        my($self, $new) = @_;

        if(defined $new) {
            $self->{string} = $new;
        }

        return $self->{string};
    }
    ##################################################
    sub tktext {   
    ##################################################
        my($self, $new) = @_;
        if(defined $new) {
            $self->{tktext} = $new;
        }

        return $self->{tktext};
    }

    ##################################################
    sub string_ref {   
    ##################################################
        my($self ) = @_;
        return if $self->{tktext};
        return \$self->{string};
    }
    1;

}
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