usb_esc_printer_windows 0.0.3 
usb_esc_printer_windows: ^0.0.3 copied to clipboard
Flutter FFI ESC/POS Printer Plugin For Windows Platform
import 'package:esc_pos_utils_plus/esc_pos_utils_plus.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:image/image.dart' as img;
import 'package:usb_esc_printer_windows/usb_esc_printer_windows.dart' as usb_esc_printer_windows;
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
final String _printerName = "EPSON";
late Future<CapabilityProfile> _profile;
@override
initState() {
_profile = CapabilityProfile.load();
super.initState();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Fluter ESC/POS Printer Pakage For Windows Platform Only'),
),
body: SingleChildScrollView(
child: Container(
padding: const EdgeInsets.all(10),
child: Column(
children: [
ElevatedButton(
onPressed: printReq,
child: const Text("Demo Print"),
)
],
),
),
),
),
);
}
Future<Uint8List> loadImageFromAssets(String path) async {
final ByteData data = await rootBundle.load(path);
return data.buffer.asUint8List();
}
printReq() async {
List<int> bytes = [];
final profile = await _profile;
final generator = Generator(PaperSize.mm80, profile);
// LOGO
final Uint8List data = await loadImageFromAssets('assets/images/logo.png');
img.Image originalImage = img.decodeImage(data)!;
bytes += generator.imageRaster(originalImage, align: PosAlign.center);
bytes += generator.feed(1);
//GENERATE BARCODE
String invoiceNo = "322123000000";
List<int> barData = invoiceNo.split('').map((String digit) => int.parse(digit)).toList();
bytes += generator.barcode(
Barcode.itf(barData),
height: 100,
textPos: BarcodeText.none,
);
bytes += generator.feed(1);
bytes += generator.text(
'INV #322123000000',
styles: const PosStyles(
align: PosAlign.center,
height: PosTextSize.size2,
width: PosTextSize.size2,
),
);
bytes += generator.text('Reprinted at : 06-11-2023 07:32:52 AM');
bytes += generator.feed(1);
bytes += generator.text(
'PAID(IN)',
styles: const PosStyles(
align: PosAlign.center,
height: PosTextSize.size2,
width: PosTextSize.size2,
),
);
bytes += generator.feed(1);
bytes += generator.text('Walk in');
bytes += generator.text('Tel : 0000000000');
bytes += generator.text('Date\\Time : Sun, 10 Sep 2023 06:24 PM');
bytes += generator.text('Associate : 5552');
bytes += generator.text('Promised On : Sun, 10 Sep 2023 06:24 PM');
bytes += generator.feed(1);
bytes += [27, 97, 0];
bytes += generator.row([
PosColumn(
text: 'QTY',
width: 1,
styles: const PosStyles(
align: PosAlign.left,
bold: true,
),
),
PosColumn(
text: 'S/T/DESCRIPTION',
width: 8,
styles: const PosStyles(
align: PosAlign.left,
bold: true,
),
),
PosColumn(
text: 'TOTAL',
width: 3,
styles: const PosStyles(
align: PosAlign.left,
bold: true,
),
),
]);
bytes += [27, 97, 1];
bytes += generator.text('-----------------------------------------');
bytes += [27, 97, 0];
bytes += generator.text(
' 1x Pants (IN) \$ 133.40',
styles: const PosStyles(
align: PosAlign.left,
reverse: true,
bold: true,
),
);
bytes += generator.feed(1);
bytes += [27, 97, 1];
//GENERATE BARCODE
bytes += generator.barcode(
Barcode.itf(
"32212300000000".split('').map((String digit) => int.parse(digit)).toList(),
),
height: 50,
textPos: BarcodeText.none,
);
bytes += generator.text("32212300000000");
bytes += generator.feed(1);
bytes += [27, 97, 0];
bytes += generator.row([
PosColumn(
text: '1x',
width: 1,
styles: const PosStyles(
align: PosAlign.left,
),
),
PosColumn(
text: '(\$13.40 Growth Hem)',
width: 11,
styles: const PosStyles(
align: PosAlign.left,
),
),
]);
bytes += [27, 97, 0];
bytes += generator.row([
PosColumn(
text: '',
width: 1,
styles: const PosStyles(
align: PosAlign.left,
),
),
PosColumn(
text: '(Tag : (1x) Lengthen : Lengthen \$ 0.00',
width: 11,
styles: const PosStyles(
align: PosAlign.left,
),
),
]);
bytes += [27, 97, 0];
bytes += generator.row([
PosColumn(
text: '',
width: 1,
styles: const PosStyles(
align: PosAlign.left,
),
),
PosColumn(
text: '| (1x) Lengthen : Polo Hem \$ 0.00) |',
width: 11,
styles: const PosStyles(
align: PosAlign.left,
),
),
]);
bytes += [27, 97, 0];
bytes += generator.row([
PosColumn(
text: '',
width: 1,
styles: const PosStyles(
align: PosAlign.left,
),
),
PosColumn(
text: 'Dept Hem',
width: 11,
styles: const PosStyles(
align: PosAlign.left,
bold: true,
),
),
]);
bytes += generator.feed(1);
bytes += [27, 97, 0];
bytes += generator.text(
' 1x Pants (IN) \$ 133.40',
styles: const PosStyles(
align: PosAlign.left,
reverse: true,
bold: true,
),
);
bytes += generator.feed(1);
bytes += [27, 97, 1];
//GENERATE BARCODE
bytes += generator.barcode(
Barcode.itf(
"32212300000000".split('').map((String digit) => int.parse(digit)).toList(),
),
height: 50,
textPos: BarcodeText.none,
);
bytes += generator.text("32212300000000");
bytes += generator.feed(1);
bytes += [27, 97, 0];
bytes += generator.row([
PosColumn(
text: '1x',
width: 1,
styles: const PosStyles(
align: PosAlign.left,
),
),
PosColumn(
text: '(\$13.40 Growth Hem)',
width: 11,
styles: const PosStyles(
align: PosAlign.left,
),
),
]);
bytes += [27, 97, 0];
bytes += generator.row([
PosColumn(
text: '',
width: 1,
styles: const PosStyles(
align: PosAlign.left,
),
),
PosColumn(
text: '(Tag : (1x) Lengthen : Lengthen \$ 0.00',
width: 11,
styles: const PosStyles(
align: PosAlign.left,
),
),
]);
bytes += [27, 97, 0];
bytes += generator.row([
PosColumn(
text: '',
width: 1,
styles: const PosStyles(
align: PosAlign.left,
),
),
PosColumn(
text: '| (1x) Lengthen : Polo Hem \$ 0.00) |',
width: 11,
styles: const PosStyles(
align: PosAlign.left,
),
),
]);
bytes += [27, 97, 0];
bytes += generator.row([
PosColumn(
text: '',
width: 1,
styles: const PosStyles(
align: PosAlign.left,
),
),
PosColumn(
text: 'Dept Hem',
width: 11,
styles: const PosStyles(
align: PosAlign.left,
bold: true,
),
),
]);
bytes += generator.feed(1);
bytes += [27, 97, 1];
bytes += generator.text('-----------------------------------------');
bytes += [27, 97, 0];
bytes += generator.text(
'HST # : R877439000',
styles: const PosStyles(
height: PosTextSize.size1,
),
);
bytes += [27, 97, 2];
bytes += generator.text('Sub Total \$ 13.40');
bytes += [27, 97, 0];
bytes += generator.text('Total Disc \$ 0.00');
bytes += [27, 97, 2];
bytes += generator.text('HST (13%) \$ 1.74');
bytes += generator.feed(1);
bytes += [27, 97, 2];
bytes += generator.text(
'Total \$ 15.14',
styles: const PosStyles(
height: PosTextSize.size2,
bold: true,
),
);
bytes += generator.text(
'Balance Owing \$ 0.00',
styles: const PosStyles(
height: PosTextSize.size2,
bold: true,
),
);
bytes += generator.feed(1);
bytes += [27, 97, 1];
bytes += generator.text('Transaction details');
bytes += generator.text('*****************************************');
bytes += [27, 97, 0];
bytes += generator.text('Tender Type : Cash(INV)');
bytes += generator.text('Amount : \$ 0.00');
bytes += [27, 97, 2];
bytes += generator.text('Total Tendered \$ 13.40');
bytes += generator.text('Total Charge \$ 0.00');
bytes += generator.text('Total Round Off \$ 0.01');
bytes += [27, 97, 0];
bytes += generator.text('Items : 1');
bytes += [27, 97, 1];
bytes += generator.text(
'Production : Sun, 10 Sep 2023 09:00 AM',
styles: const PosStyles(
height: PosTextSize.size2,
bold: true,
),
);
bytes += generator.feed(1);
bytes += [27, 97, 2];
bytes += generator.text('Points Earned Before This Visit : \$ 739.85');
bytes += generator.text('Total Points Earned : \$ 0.57');
// 0 = left, center = 1 right = 2
bytes += [27, 97, 1];
bytes += generator.text('*** Store Copy ***');
bytes += generator.feed(1);
bytes += generator.cut();
final res = await usb_esc_printer_windows.sendPrintRequest(bytes, _printerName);
String msg = "";
if (res == "success") {
msg = "Printed Successfully";
} else {
msg = "Failed to generate a print please make sure to use the correct printer name";
}
print(msg);
}
}Metadata
6
likes
130
points
166
downloads
Publisher
unverified uploader
Weekly Downloads
Metadata
Flutter FFI ESC/POS Printer Plugin For Windows Platform
Documentation
License
MIT (license)
Dependencies
ffi, flutter, plugin_platform_interface
