| public selectPrintMode ( integer $mode = Printer::MODE_FONT_A ) | ||
| $mode | integer | The mode to use. Default is Printer::MODE_FONT_A, with no special formatting. This has a similar effect to running initialize(). |
public function selectPrintMode($mode = Printer::MODE_FONT_A)
{
$allModes = Printer::MODE_FONT_B | self::MODE_EMPHASIZED | self::MODE_DOUBLE_HEIGHT | self::MODE_DOUBLE_WIDTH | self::MODE_UNDERLINE;
if (!is_integer($mode) || $mode < 0 || ($mode & $allModes) != $mode) {
throw new InvalidArgumentException("Invalid mode");
}
$this->connector->write(self::ESC . "!" . chr($mode));
}function title(Printer $printer, $text)
{
$printer->selectPrintMode(Printer::MODE_EMPHASIZED);
$printer->text("\n" . $text);
$printer->selectPrintMode();
// Reset
}