在这个例子中我如何禁止打印对话框？ [英] How would I suppress the print dialog in this example?

问题描述

private void printCard() {

        PrinterJob printjob = PrinterJob.getPrinterJob();
        printjob.setJobName("Label");

        Printable printable = new Printable() {

                public int print(Graphics pg, PageFormat pf, int pageNum) {

                        if (pageNum > 0) {
                                return Printable.NO_SUCH_PAGE;
                        }

                        Dimension size = jLayeredPane2.getSize();
                        BufferedImage bufferedImage = new BufferedImage(size.width, size.height, BufferedImage.TYPE_INT_RGB);

                        jLayeredPane2.print(bufferedImage.getGraphics());

                        Graphics2D g2 = (Graphics2D) pg;
                        g2.translate(pf.getImageableX(), pf.getImageableY());
                        g2.drawImage(bufferedImage, 0, 0, (int) pf.getWidth(), (int) pf.getHeight(), null);

                        return Printable.PAGE_EXISTS;
                }
        };

        Paper paper = new Paper();
        paper.setImageableArea(0, 0, 153, 243);
        paper.setSize(243, 154);

        PageFormat format = new PageFormat();
        format.setPaper(paper);
        format.setOrientation(PageFormat.LANDSCAPE);

        printjob.setPrintable(printable, format);
        if (printjob.printDialog() == false)
                return;

        try {
                printjob.print();
        } catch (PrinterException ex) {
                System.out.println("NO PAGE FOUND." + ex);

        }
}

推荐答案

从我在代码中看到的，你调用 if（printjob.printDialog（）== false）。这将始终尝试显示本机打印机属性对话框。 boolean 返回值基于用户是否单击确定或取消对话框。如果要禁止对话框，请删除如果块，因为要执行的打印作业是通过 printjob.print（） 呼叫。

From what I see in your code, you call if (printjob.printDialog() == false). This will always try to show the native printer properties dialog. The boolean return value is based on whether the user clicks OK or cancels out of the dialog. If you want to suppress the dialog, remove that if block, as the printing work that you want to perform is done via the printjob.print() call.

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