package my_control;
use base 'Wx::Control';
use Wx qw(:sizer);
use Wx::Event qw(EVT_BUTTON);

sub new {
    my $ref = shift;
    my $parent = shift;
    my $self = $ref->SUPER::new($parent, -1);

    $self->{sizer} = Wx::StaticBoxSizer->new(
        Wx::StaticBox->new($parent, -1, 'Box label'),
        wxHORIZONTAL
    );

    $self->{button} = Wx::Button->new($parent, -1, 'Button');
    $self->{sizer}->Add($self->{button});
    EVT_BUTTON($self, $self->{button}, \&click);

    $self->SetSizer($self->{sizer});
    $self->{sizer}->SetSizeHints($self);
    $self->{sizer}->FitInside($self);

    return $self;
}

sub click { Wx::MessageBox('Click!'); }