startPTTPrint method
Start creating the command and print data string for a P-touch Template. Specify a template and the character encoding. This function assumes the default P-touch Template settings. Your application may not be able to print if the printer's settings differ from the defaults. If necessary, use the P-touch Template Setting Tool to configure the printer.
Implementation
Future<bool> startPTTPrint(int key, String encode) async {
var params = {
"printerId": mPrinterId,
"printInfo": mPrinterInfo.toMap(),
"key": key,
"encode": encode
};
final bool success = await _channel.invokeMethod("startPTTPrint", params);
return success;
}