Print Charset

[cybersantos]

I'm not able to print how the Portuguese characters should be. I've tried several charsets and the result is the same. The printer is a eurosys t9bt02

[masreplay]

@cybersantos I manage to solve it by creating an image then i printing it

First, create unit8list

final bytes = static Future<Uint8List?> multilineTextImage(
    String text, [
    double width = 375,
  ]) async {
    final recorder = PictureRecorder();
    final canvas = Canvas(recorder);
    /// Background
    final backgroundPaint = Paint()..color = Colors.white;
    final backgroundRect = Rect.fromLTRB(width, 10000, 0, 0);
    final backgroundPath = Path()
      ..addRRect(
        RRect.fromRectAndRadius(backgroundRect, const Radius.circular(0)),
      )
      ..close();
    canvas.drawPath(backgroundPath, backgroundPaint);
    final infoPainter = TextPainter(
      textDirection: TextDirection.rtl,
      text: TextSpan(
        text: text,
        style: const TextStyle(
          color: Colors.black,
          fontSize: 24,
          fontWeight: FontWeight.bold,
        ),
      ),
    );
    infoPainter
      ..layout(
        maxWidth: width,
      )
      ..paint(
        canvas,
        const Offset(0, 0),
      );
    final picture = recorder.endRecording();
    final pngBytes =
        await (await picture.toImage(width.toInt(), infoPainter.height.toInt()))
            .toByteData(format: ImageByteFormat.png);
    return pngBytes?.buffer.asUint8List();
  }

Then print it BlueThermalPrinter.instance.printImageBytes(bytes)

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