Application.java 文件源码

public void printWorksheetLevel() {
    PrinterJob print = PrinterJob.getPrinterJob();
    PrintRequestAttributeSet set = new HashPrintRequestAttributeSet();
    set.add(OrientationRequested.LANDSCAPE);
    print.setPrintable(oscilloscope);
    if(print.printDialog(set))
        try { print.print(); }
    catch(PrinterException e) {}
}