I have never used a credit card scanner but, if they're like barcode scanners, I'm assuming they simply enter their content in whatever has focus, in this case your hidden $card_input textfield. You could use a Change() event on the textfield to tell you when the card has been swiped. Example: (untested)

...
# Create controls

$event_field->Append("Initializing modem... ");

init_modem();

$event_field->Append("initialized\n");

$card_input->SetFocus();

$event_field->Append("Please swipe card... ");

$window->Show();

Win32::GUI::Dialog();

sub card_input_Change {
    my $input1 = $card_input->GetLine(0);
    my $input2 = $card_input->GetLine(1);

    $event_field->Append("swiped\n");

    print "\$input1: $input1\n";
    print "\$input2: $input2\n";

    my $cc_number;
    if ($input1 =~ /^\%B(\d{16})/i) {
        $cc_number = $1;
    }

    my $exp_dt;
    if ($input2 =~ /\=(\d{2})(\d{2})(.*)/) {
        $exp_dt = $2 . $1;
    }

    sleep 1;

    $event_field->Append("Connecting... ");

    ...
}

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In reply to Re: Win32 GUI Input or Event by kejohm
in thread Win32 GUI Input or Event by perldiverx

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