PrintQueueWatch Job.Transfer

Anybody has use the PrintQueueWatch dll for monitor printJobs and printers.

I'm using the PrintQueueWatch dll for a simple app to monitor printers.

I wanna know how to use the function

PrintJob.Transfer.(string printerName, bool transfer)

The function is for transfer the print job to another printer, It's seems very easy to use, the function needs the printer name and a bool value to keep or not the print job in the original printer

but the problem is that always raises an exception

access denied

I've done all this steps that a user here told me to do,but still the same

Printer Permissions: Ensure that your application has the necessary permissions to manage the printers and print jobs. This includes:

Read/Write permissions on both the source and destination printers.
Manage Documents permission for both printers.

Run as Administrator: Run your application with elevated privileges (Run as Administrator) to ensure it has the necessary access rights.

Check Printer Spooler Service: Ensure that the Printer Spooler service is running and that there are no issues with it. Restarting the spooler service might help.

User Account Control (UAC): If UAC is enabled, it might be blocking access. Try running the application with UAC disabled or adjust the UAC settings.

This is what I'm doing.

using (PrinterQueueWatch.PrinterInformation PrinterInfo = new PrinterQueueWatch.PrinterInformation("HP LaserJet P1006", PrinterQueueWatch.SpoolerApiConstantEnumerations.PrinterAccessRights.SERVER_ALL_ACCESS, true))
                {
                    PrinterInfo.PrintJobs.get_ItemByJobId(Id).Transfer("Microsoft Print to PDF", false);
                }

Thanks

It seems like you’ve done a lot of the necessary steps to ensure that your application has the necessary permissions to manage the printers and print jobs. However, the “Access Denied” exception you’re encountering might be due to the way the PrintQueueWatch library handles permissions.

According to a StackOverflow post, the GetPrintQueue method in the PrintQueueWatch library does not allow you to pass in the desired access level. This means that even if you’re connecting to the print server with AdministratePrinter rights, you’re connecting to the print queue with default user rights. This could be the reason why you’re getting an “Access Denied” exception.

Here’s a potential solution: Instead of using the GetPrintQueue method, use the constructor for PrintQueue to specify the correct access level. Here’s an example:

using (PrintServer ps = new PrintServer())
{
    using (PrintQueue pq = new PrintQueue(ps, printerName, PrintSystemDesiredAccess.AdministratePrinter))
    {
        pq.Purge();
    }
}

In this code, the PrintQueue constructor is used to specify the AdministratePrinter access level. This might help you avoid the “Access Denied” exception.

Please note that this code might still cause permission errors if it’s not running in the context of a member of the Administrators group or not running with elevated permissions. So, surrounding this with a try/catch block is a good idea for production code1.

Thanks

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Naimish Makwana2y ago
Accepted answer
It seems like you’ve done a lot of the necessary steps to ensure that your application has the necessary permissions to manage the printers and print jobs. However, the “Access Denied” exception you’re encountering might be due to the way the PrintQueueWatch library handles permissions.

According to a StackOverflow post, the GetPrintQueue method in the PrintQueueWatch library does not allow you to pass in the desired access level. This means that even if you’re connecting to the print server with AdministratePrinter rights, you’re connecting to the print queue with default user rights. This could be the reason why you’re getting an “Access Denied” exception.

Here’s a potential solution: Instead of using the GetPrintQueue method, use the constructor for PrintQueue to specify the correct access level. Here’s an example:
```
using (PrintServer ps = new PrintServer())
{
    using (PrintQueue pq = new PrintQueue(ps, printerName, PrintSystemDesiredAccess.AdministratePrinter))
    {
        pq.Purge();
    }
}
```
In this code, the PrintQueue constructor is used to specify the AdministratePrinter access level. This might help you avoid the “Access Denied” exception.

Please note that this code might still cause permission errors if it’s not running in the context of a member of the Administrators group or not running with elevated permissions. So, surrounding this with a try/catch block is a good idea for production code1.

Thanks