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<TITLE>Cancelling a Print Job
(Java Developers Almanac Example)
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<META CONTENT="Patrick Chan" NAME="AUTHOR">
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<B><A HREF="../javax.print/pkg.html">javax.print</A></B><font color="#666666" SIZE="-2">
[6 examples]
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<h3>
e709.
Cancelling a Print Job</h3>
Not all print jobs can be cancelled. A print job can be cancelled if the
PrintJob object implements <code>CancelablePrintJob</code>.
This example shows a cancel button if the print job can be cancelled.
<pre>
try {
// Create the print job
final DocPrintJob job = <font color="#0066ff"><i>service</i></font>.createPrintJob();
Doc doc = new SimpleDoc(is, <font color="#0066ff"><i>flavor</i></font>, null);
// Monitor print job events
// See "Determining When a Print Job Has Finished"
// for the implementation of PrintJobWatcher
PrintJobWatcher pjDone = new PrintJobWatcher(job);
// Sample code to display a cancel button
JFrame frame = new JFrame();
if (job instanceof CancelablePrintJob) {
JButton btn = new JButton("Cancel Print Job");
btn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
CancelablePrintJob cancelJob = (CancelablePrintJob)job;
try {
cancelJob.cancel();
} catch (PrintException e) {
// Possible reason is job was already finished
}
}
});
frame.getContentPane().add(btn, BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
}
// Print it
job.print(doc, null);
// Wait for the print job to be done
pjDone.waitForDone();
// Remove frame
frame.setVisible(false);
// It is now safe to close the input stream
is.close();
} catch (PrintException e) {
if (e.getCause() instanceof java.awt.print.PrinterAbortException) {
// Print job was cancelled
}
}
</pre>
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Related Examples
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e704. <a class="eglink" href="BasicPrint.html?l=rel">
The Quintessential Printing Program Using a Printing Service
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<br>
e705. <a class="eglink" href="BasicStream.html?l=rel">
The Quintessential Printing Program Using a Streaming Printing Service
</a>
<br>
e706. <a class="eglink" href="WaitForDone.html?l=rel">
Determining When a Print Job Has Finished
</a>
<br>
e707. <a class="eglink" href="DiscoverAll.html?l=rel">
Discovering Available Print Services
</a>
<br>
e708. <a class="eglink" href="DiscoverStream.html?l=rel">
Discovering Available Streaming Print Services
</a>
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