Get feedback from report viewer

We want to get the feedback from java crystal report viewer whether report is printed or not.Simply want to know print button is pressed by the user of print dialog.
Earlier we got feedback from VB6 viewer from bellow code,
CrystalReport.PrintingStatus.Progress
Do we have a method to get this from java viewer.It is a very important feature for us,
Thanks.

Recently i found the method printInteractively (..) in ReportPagePrinter class in CrystalReportsRuntime.jar package does not return any thing.
public void printInteractively(ReportDocument paramReportDocument, String paramString, PrintObserver paramPrintObserver)
    throws PrinterException
    jdMethod_int(paramReportDocument, paramString, paramPrintObserver);
    int[] arrayOfInt1 = new int[1];
    int[] arrayOfInt2 = new int[1];
    ReportPage localReportPage = jdMethod_int(1, arrayOfInt1, arrayOfInt2);
    if (localReportPage == null)
      return;
    this.D = jdMethod_try(localReportPage);
    if (!jdMethod_int(this.v.defaultPage().getPaper(), this.D))
      PageFormat localPageFormat1 = jdMethod_byte(localReportPage);
      PageFormat localPageFormat2 = this.v.pageDialog(localPageFormat1);
      if (localPageFormat2 == localPageFormat1)
        return;
      this.D = localPageFormat2.getPaper();
    if (!this.v.printDialog())
      return;
    this.v.print();
Why this important feature does not have in java package.Any future release do you expecting to add that ?

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