C#

//print the report<br />
 OpenFileDialog fdlg = new OpenFileDialog();<br />
 fdlg.Title = "C# Corner Open File Dialog";<br />
 fdlg.InitialDirectory = @"C:\ ";<br />
 fdlg.Filter = "Text files (*.txt | .txt | All files (*.*) | *.*";<br />
 fdlg.FilterIndex = 2;<br />
 fdlg.RestoreDirectory = true;<br />
 if (fdlg.ShowDialog() == DialogResult.OK)<br />
 {<br />
     textBox1.Text = fdlg.FileName;<br />
 }<br />
 string filename = textBox1.Text.ToString();<br />
 //Create a StreamReader object<br />
 reader = new StreamReader(filename);<br />
 //Create a Verdana font with size 10<br />
 verdana10Font = new Font("Arial", 10);<br />
 //Create a PrintDocument object<br />
 PrintDocument pd = new PrintDocument();<br />
 //Add PrintPage event handler<br />
 pd.PrintPage += new PrintPageEventHandler(this.PrintTextFileHandler);<br />
 //set up for landscape<br />
 pd.DefaultPageSettings.Landscape = true;<br />
 <br />
 //Call Print Method<br />
 pd.Print();<br />
 //Close the reader<br />
 if (reader != null)<br />
 {<br />
     reader.Close();<br />
 }

<code>
extern "C" _declspec(dllexport) BOOL FindUser2(char *cpUserFile, 
              char *cpPassword, 
              char *cpUserName, 
              char *cpUserPriveledge, 
              char *cpUserID, 
              char *cpComments, 
              BOOL *bUserActive,
              char *cpErrorReason);
</code>

<code>
extern "C" BOOL FindUser2(char *cpUserFile, 
              char *cpPassword, 
              char *cpUserName, 
              char *cpUserPriveledge, 
              char *cpUserID, 
              char *cpComments, 
              BOOL *bUserActive,
              char *cpErrorReason)
{
 ...
return TRUE;
}
</code>

<code>
...
using System.Runtime.InteropServices;

namespace Material_OIT
{
    public static class Authorize
    {
        [DllImport("WN_USER_SECURITY.dll", EntryPoint="#1")]
        static public unsafe extern int FindUser2(ref char[] UserFile,
                                        ref char[] Password,
                                        out char[] UserName,
                                        out char[] UserPrivilege,
                                        out char[] userID,
                                        out char[] Comments,
                                        out int UserActive,
                                        out char[] ErrorReason);
    }
}
</code>

<code>

char[] UserFile = new char[256];
char[] Password = new char[256];
char[] UserName = new char[256];
char[] UserPriv = new char[256];
char[] UserID = new char[256];
char[] Comments = new char[256];
int UserActive = 0;
char[] ErrorReason = new char[256];

String userFile = @"C:\BSAH_WN\MATERIAL\CELL\FILES\CONFIG\USER_LIST.INF";
userFile.CopyTo(0, UserFile, 0, 51);
            
string password = "410572537";
password.CopyTo(0, Password, 0, 9);

Authorize.FindUser2(ref UserFile, ref Password, out UserName, out UserPriv, out UserID, out Comments, out UserActive,out ErrorReason);
</code>

try
{
  if (table != null)
  {
                    
    using (OleDbConnection connection = new OleDbConnection())
    {
      connection.Open();
      using (OleDbCommand command = connection.CreateCommand())
      {
        command.CommandText = "SELECT obj From " + table.Alias;
        using (OleDbDataReader reader = command.ExecuteReader())
        {
           while (reader.Read())
           {
             
             container.Add(new Feature((xx)reader.Getxx(0)));
             //do other things that might cause an exception
           }
        }
       }
     }
   }
}
catch (Exception)
{
    MessageBox.Show("There was a GPS Error");
}