printSetFont method
Implementation
@override
Future<String?> printSetFont(int asciiFontHeight, int extendFontHeight, int zoom) async {
final Map<String, dynamic> args = <String, dynamic>{
'asciiFontHeight': asciiFontHeight,
'extendFontHeight': extendFontHeight,
'zoom': zoom,
};
return await methodChannel.invokeMethod<String>('PrintSetFont', args);
}