列出每个用户的所有网络打印机

本文关键字：网络 打印机 用户 | 更新日期: 2023-09-27 18:07:42

在我的工作中，我们以每个用户为基础安装打印机。我在试着写一个备份程序，列出所有联网打印机的用户名。这有可能吗?通过WMI或System。我可以。下面的代码列出了所有与打印机联网的机器，但不是每个用户。

private void Button_Click(object sender, EventArgs e)
{
        ConnectionOptions objConnection = new ConnectionOptions();
        objConnection.Impersonation = ImpersonationLevel.Impersonate;
        objConnection.EnablePrivileges = true;

         string backupselectedcomputer = "Some Computer Name"
          ManagementScope objScope = new ManagementScope("''''" + backupselectedcomputer     +"''root''cimv2",objConnection); 
         objScope.Connect();
         SelectQuery selectQuery = new SelectQuery();
         selectQuery.QueryString = "Select * from win32_Printer Where Local = FALSE";
         ManagementObjectSearcher MOS = new ManagementObjectSearcher(objScope, selectQuery);
         ManagementObjectCollection MOC = MOS.Get();
        foreach (ManagementObject mo in MOC)
        {
       //lbBackupprinters is a list box
            lbBackupprinters.Items.Add(mo["Name"].ToString().ToUpper());
         }
 }

列出每个用户的所有网络打印机

想到办法了。这里是任何人遇到这个问题的代码。

 private void ddlBackupselectuser_SelectionChangeCommitted(object sender, EventArgs e)
    {
        lbBackupprinters.Items.Clear();
        string selecteduser = ddlBackupselectuser.Text;
        string computer = ddlBackupselectcomp.Text;
        string sid;
        lblBackuppwd.Visible = true;
        txtBackuppwd.Visible = true;
        cboBackuppwdshow.Visible = true;
        //BEGIN GRAB PRINTERS FROM REGISTRY
        try
        {
            NTAccount ntuser = new NTAccount(selecteduser);
            SecurityIdentifier sID = (SecurityIdentifier)ntuser.Translate(typeof(SecurityIdentifier));
            lblBackupStatus.Text = sID.ToString();
            sid = sID.ToString();
        }
        catch (IdentityNotMappedException)
            {
                lblBackupStatus.Text = "ERROR "+ ddlBackupselectuser.Text.ToString() + " contains no profile information";
                lbBackupprinters.Items.Add("No Printers Found");
            return;
            }

                 ConnectionOptions co = new ConnectionOptions();
                 co.EnablePrivileges = true;
                 co.Impersonation = ImpersonationLevel.Impersonate;
                 System.Net.IPHostEntry h = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName());
                 string IPAddress = h.AddressList.GetValue(0).ToString();
                 string lm = System.Net.Dns.GetHostName().ToString();
                try
                 {

                     ManagementScope myScope = new ManagementScope("''''" + computer + "''root''default", co);
                     ManagementPath mypath = new ManagementPath("StdRegProv");
                     ManagementClass wmiRegistry = new ManagementClass(myScope, mypath, null);

                    const uint HKEY_LOCAL_MACHINE = unchecked((uint)0x80000002);
                     //ManagementClass wmiRegistry = new ManagementClass("root/default",
                     //"StdRegProv",null);
                     string keyPath = @"SOFTWARE''Microsoft''Windows NT''CurrentVersion''Print''Providers''Client Side Rendering Print Provider''" + sid + "''Printers''Connections";
                     object[] methodArgs = new object[] { HKEY_LOCAL_MACHINE, keyPath, null };
                     uint returnValue = (uint)wmiRegistry.InvokeMethod("EnumKey", methodArgs);

                     if (null != methodArgs[2])
                     {
                         string[] subKeys = methodArgs[2] as String[];
                         if (subKeys == null)
                         {
                             lbBackupprinters.Items.Add("No Printers Found");
                             return;
                         }
                         ManagementBaseObject inParam = wmiRegistry.GetMethodParameters("GetStringValue");
                         inParam["hDefKey"] = HKEY_LOCAL_MACHINE;

                         string keyName = "";

                         foreach (string subKey in subKeys)
                         {
                             //Display application name
                             keyPath = @"SOFTWARE''Microsoft''Windows NT''CurrentVersion''Print''Providers''Client Side Rendering Print Provider''" + sid + "''Printers''Connections" + subKey;
                             keyName = "DisplayName";
                             inParam["sSubKeyName"] = keyPath;
                             inParam["sValueName"] = keyName;
                             ManagementBaseObject outParam = wmiRegistry.InvokeMethod("GetStringValue", inParam, null);

                                 lbBackupprinters.Items.Add(subKey);

                         }
                     }
                     else
                     {
                         lbBackupprinters.Items.Add("No Printers Found");                             
                     }
                 }
                 catch (Exception ex)
                 {
                     MessageBox.Show("Error: " + ex.Message);
                }
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