How to get the raw printer tray ID

Question

I’m trying to find the printer tray ids of a particular printer. I have searched and found a lot of articles in Java using the PrintService, Media and MediaTray. Yet, this doesn’t provide a solution for my requirement. I will get the following output if I run the below code.

String printName = "AL-M2010-3D8E02";
AttributeSet aset = new HashAttributeSet();
aset.add(new PrinterName(printName, null));
PrintService[] services = PrintServiceLookup.lookupPrintServices(null, aset);
for (int i = 0; i < services.length; i++) {
    PrintService service = services[i];
    System.out.println(service);
    DocFlavor flavor = DocFlavor.SERVICE_FORMATTED.PAGEABLE;
    Object o = service.getSupportedAttributeValues(Media.class, flavor, null);
    if (o != null && o.getClass().isArray()) {
        for (Media media : (Media[]) o) {
            if (media instanceof MediaTray) {
                System.out.println(media + " ID: " + media.getValue() + "\t" + media.getClass().getName());
            }
        }
    }
}

Win32 Printer : AL-M2010-3D8E02

Form-Source ID: 5 sun.print.Win32MediaTray

MP Tray ID: 6 sun.print.Win32MediaTray

Lower Cassette 1 ID: 7 sun.print.Win32MediaTray

Lower Cassette 2 ID: 8 sun.print.Win32MediaTray

Lower Cassette 3 ID: 9 sun.print.Win32MediaTray

Lower Cassette 4 ID: 10 sun.print.Win32MediaTray

If I run the following .net code I would get the following outpt.

PrintDocument printDoc = new PrintDocument();
printDoc.PrinterSettings.PrinterName = "AL-M2010-3D8E02";

for (int i = 0; i < printDoc.PrinterSettings.PaperSources.Count; i++)
{
    trayDetails.AppendText(printDoc.PrinterSettings.PaperSources[i].SourceName + " " + printDoc.PrinterSettings.PaperSources[i].RawKind.ToString());
    trayDetails.AppendText(Environment.NewLine);
}

Automatically Select 15

MP Tray 261

Lower Cassette 1 260

Lower Cassette 2 259

Lower Cassette 3 258

Lower Cassette 4 257

The above is what I want to achieve. I want to get the raw printer ID like 260, 259, 258 and so on through Java instead of getting 7,8,9 and 10. Is this possible in some way?

Answer 1

To your above code just add 3 more lines. All you need is to print winID property from "Win32MediaTray" object.

if (o != null && o.getClass().isArray()) {
        for (Media media : (Media[]) o) {
            if (media instanceof MediaTray) {
                System.out.println(media + " ID: " + media.getValue() + "\t" + media.getClass().getName());

                 if(media instanceof sun.print.Win32MediaTray){
                      Win32MediaTray  win32Tray = (Win32MediaTray)media;
                      System.out.println(win32Tray.winID);
                  }

            }
        }
    }