I am working on a Winforms application that allows users to print a few different Reporting Services reports. Unfortunately, if the user tries to print to PDF using the Adobe PDF printer, it crashes. We haven't been able to solve this issue, so as a work around we want remove the ability for users to print to the Adobe PDF printer.
Is there any way to programmatically remove the Adobe PDF printer from the list of printers in the print dialog?
Call this with the printer name before calling PrintDialog().... I think this will solve your issue
public bool RemovePrinter(string printerName)
{
ManagementScope scope = new ManagementScope(ManagementPath.DefaultPath);
scope.Connect();
SelectQuery query = new SelectQuery("select * from Win32_Printer");
ManagementObjectSearcher search = new ManagementObjectSearcher(scope, query);
ManagementObjectCollection printers = search.Get();
foreach (ManagementObject printer in printers)
{
string printerName = printer["Name"].ToString().ToLower();
if (printerName.Equals(printerName.ToLower()))
{
printer.Delete();
break;
}
}
return true;
}
The answer from manish gave me what I needed. In my case, I had a virtual printer driver that was being created by a library, and it left orphans like Printer (1), Printer (2), etc. I wanted to delete all of those, so I used a variant of the WMI code above.
using System.Management;
//...
var scope = new ManagementScope(ManagementPath.DefaultPath);
scope.Connect();
var query = new SelectQuery($#"select * from Win32_Printer where Name like '{PrinterDeviceName}%'");
foreach (var o in new ManagementObjectSearcher(scope, query).Get())
((ManagementObject) o).Delete();
You need a reference to System.Management.
Related
I'm having trouble connecting to remote computer to grab a list of processes running.
For my test machine I'm using the username #"ownme\veritas". The password is just "veritas".
The sample domain is "ownme".
return new System.Management.ConnectionOptions()
{
//certainly these variables have been checked and are correct
Username = UserCredential.DomainUser,
Password = UserCredential.Password
};
This is where I'm trying to do the connection. I don't know, but this might actually be the issue here. It could also be I didn't fill out enough fields in the ConnectionOptions above.
I referred to these two articles:
https://www.experts-exchange.com/questions/23514935/How-to-use-GetProcess-for-remote-sytems.html
https://msdn.microsoft.com/en-us/library/system.management.connectionoptions.authentication.aspx
I can't figure out what I'm doing wrong
ManagementScope scope = new ManagementScope($"\\\\{computer.DnsHostname}\\root\\cimv2", connectionOptions);
scope.Connect();
//Error: Access is denied
var processes = System.Diagnostics.Process.GetProcesses(dnsHostName);
GetProcesses will use the current users credentials to connect to the remote machine, not the credentials you specified via ConnectionOptions.
You need to use the WMI scope object that you created with the correct credentials to issue a query for the processes like this:
//..
SelectQuery query = new SelectQuery("select * from Win32_Process"); //query processes
using (ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query))
{
using (ManagementObjectCollection collection = searcher.Get())
{
foreach (var process in collection) //loop through results
{
var name = process["name"]; //process name
//Do something with process
}
}
}
I didn't realize this was such a highly viewed question: I found the answer a long time ago. I actually didn't use WMI to do it. We actually filed a ticket with Microsoft and the discounted us for free after they gave us the answer. The answer is:
LogonUser + NEW_CREDENTIALS
As shown below in the picture, when I tried to retrieve all printers, I got only 2 printers.
Is there a way to return all printers using either PowerShell WMI or C#(so that I can translate it in powershell)?
I have tried System.Drawing.Printing.PrinterSettings.InstalledPrinters (refer to how to get the list of all printers in computer - C# Winform) but also displays only 2 entries.
Simply,
via System.Drawing.Printing
foreach (String printer in PrinterSettings.InstalledPrinters)
{
Console.WriteLine(printer.ToString()+Environment.NewLine);
}
via WMI
public static void AvailablePrinters()
{
oManagementScope = new ManagementScope(ManagementPath.DefaultPath);
oManagementScope.Connect();
SelectQuery oSelectQuery = new SelectQuery();
oSelectQuery.QueryString = #"SELECT Name FROM Win32_Printer";
ManagementObjectSearcher oObjectSearcher =
new ManagementObjectSearcher(oManagementScope, #oSelectQuery);
ManagementObjectCollection oObjectCollection = oObjectSearcher.Get();
foreach (ManagementObject oItem in oObjectCollection)
{
Console.WriteLine("Name : " + oItem["Name"].ToString()+ Environment.NewLine);
}
}
via PowerShell
Get-WMIObject -class Win32_Printer -computer $printserver | Select Name,DriverName,PortName
For more information, please check this article & WMI Printer Class
How am I able do find all local printers of the machine where the program is running with a user that doesn't have admin rights. I need to remap the printer IP and set the printer as default. My idea is to use impersonation to do this but I don't know where to find the printer and if it is a good solution to use impersonation.
Thanks for any help!
I don't think you will have any luck with this. Impersonation will not work here and just throw a exception. You can try this by making a impersonation and try to open Environment.Domain it should give you a exception.
You can try something like this without impersonation:
ManagementScope mscope = new ManagementScope(#"\root\CIMV2", options);
mscope.Connect();
System.Management.ObjectQuery oQuery = new ObjectQuery("Select * from Win32_TCPIPPrinterPort");
System.Management.ManagementObjectSearcher searcher = new ManagementObjectSearcher(mscope, oQuery);
ManagementObjectCollection moCollection = searcher.Get();
foreach (ManagementObject mo in moCollection)
{
string name = mo["Name"].ToString();
if (name.Equals(this.portName))
{
System.Threading.Thread.Sleep(10000);
mo["HostAddress"] = this.printerIP;
mo.Put();
Console.WriteLine("Adjusted Printer Port to new IP address " + this.printerIP);
return true;
}
}
I need to check a group of servers to see whether the anti virus is up-to-date and running. Tricky thing is that they are spread over Windows 2003 and 2008 servers and I need to be able to check them all.
Is there any way of doing this with C# or VB.NET?
I have briefly looked around using WMI, but it appears on 2008/win7 computers Microsoft has changed what information they give back to you.
In summary, I need the following:
AV name
AV version
AV Up-to-Date
AV Enabled/Running
Can anyone help?
Sample can be found here using WMI as you mentioned. The poster states this is being done on a Win 7 machine; so the code below should get you started...
ConnectionOptions _connectionOptions = new ConnectionOptions();
//Not required while checking it in local machine.
//For remote machines you need to provide the credentials
//options.Username = "";
//options.Password = "";
_connectionOptions.EnablePrivileges = true;
_connectionOptions.Impersonation = ImpersonationLevel.Impersonate;
//Connecting to SecurityCenter2 node for querying security details
ManagementScope _managementScope = new ManagementScope(string.Format("\\\\{0}\\root\\SecurityCenter2", ipAddress), _connectionOptions);
_managementScope.Connect();
//Querying
ObjectQuery _objectQuery = new ObjectQuery("SELECT * FROM AntivirusProduct");
ManagementObjectSearcher _managementObjectSearcher =
new ManagementObjectSearcher(_managementScope, _objectQuery);
ManagementObjectCollection _managementObjectCollection = _managementObjectSearcher.Get();
if (_managementObjectCollection.Count > 0)
{
foreach (ManagementObject item in _managementObjectCollection)
{
Console.WriteLine(item["displayName"]);
//For Kaspersky AntiVirus, I am getting a null reference here.
//Console.WriteLine(item["productUptoDate"]);
//If the value of ProductState is 266240 or 262144, its an updated one.
Console.WriteLine(item["productState"]);
}
}
Depending on how your environment is setup you may need to specify your security and permissions. You should also note that some antivirus products (like McAfee) do not make data available through WMI.
You can query the Antivirus information from WMI using this snippet:
string computer = Environment.MachineName;
string wmipath = #"\\" + computer + #"\root\SecurityCenter";
string query = #"SELECT * FROM AntivirusProduct";
ManagementObjectSearcher searcher = new ManagementObjectSearcher(wmipath, query);
ManagementObjectCollection results = searcher.Get();
foreach (ManagementObject result in results)
{
// do something with `result[value]`);
}
Recently I am making a system monitoring tool. For that I need a class to monitor print job.
Such as when a print started, is it successful or not, how many pages.
I know that I can do it using winspool.drv. But dont how. I've searched extensively but having no luck. Any code/suggestion could be very helpful.
Thanks.
Well I don't know about the winspool.drv, but you can use the WMI to get the status of the printer. Here is an example of the using Win32_Printer.
PrintDialog pd = new PrintDialog();
pd.ShowDialog();
PrintDoc.PrinterSettings = pd.PrinterSettings;
PrintDoc.PrintPage += new PrintPageEventHandler(PrintDoc_PrintPage);
PrintDoc.Print();
object status = Convert.ToUInt32(9999);
while ((uint)status != 0) // 0 being idle
{
ManagementObjectSearcher mos = new ManagementObjectSearcher("select * from Win32_Printer where Name='" + pd.PrinterSettings.PrinterName + "'");
foreach (ManagementObject service in mos.Get())
{
status = service.Properties["PrinterState"].Value;
Thread.Sleep(50);
}
}
If you don't use the PrintDialog object (to choose a printer) you can run the WMI query and it will return all the printers in the system.