static async Task Main(string[] args)
{
Console.WriteLine(Password(123));
// Initialization of the db context
db = new OCCCPrintingDbContext();
// Making sure that the spooler service is running
AsyncPump.Run(async delegate
{
await ExecuteCmd.ExecuteCommandAsync("net start spooler");
});
Console.WriteLine("The app is running!!");
// Start watching the printing event
ManagementEventWatcher startWatch = new ManagementEventWatcher(
new EventQuery("SELECT * FROM __InstanceCreationEvent WITHIN 0.1 WHERE TargetInstance ISA 'Win32_PrintJob'"));
startWatch.EventArrived += new EventArrivedEventHandler(mewPrintJobs_EventArrived);
startWatch.Start();
//
Thread.Sleep(999999999);
//Console.ReadKey();
}
public static async void mewPrintJobs_EventArrived(object sender, EventArrivedEventArgs e)
{
// Loading the setting file
var settings = Properties.Settings.Default;
settings.Reload();
//Check if the program is enable
Console.WriteLine("Checking if the program is enable");
if (!settings.IsPageLimitEnable)
{
Console.WriteLine("Page Limit Disabled");
return;
}
// Getting the print even infos
Console.WriteLine("Getting the print even infos");
ManagementBaseObject printJob = (ManagementBaseObject)e.NewEvent.Properties["TargetInstance"].Value;
string printerName = printJob.Properties["Name"].Value.ToString().Split(',')[0];
int JobId = Convert.ToInt32(printJob.Properties["JobId"].Value);
// Exclude the printers from the excluded printers list
Console.WriteLine("Exclude the printers from the excluded printers list ");
string[] PrinterList = settings.ExcludedPrinters.Split(';');
foreach (string printer in PrinterList)
{
if (printer == printerName)
{
Console.WriteLine("Printer Expluded");
return;
}
}
PrintServer myPrintServer = new PrintServer();
var myPrintQueue = myPrintServer.GetPrintQueue(printerName);
var job = myPrintQueue.GetJob(JobId);
job.Pause();
// Waiting for the Spooling to end
Console.WriteLine("Waiting for the Spooling to end...");
while (job.IsSpooling)
{
job.Refresh();
}
Console.WriteLine("Spooling ended");
Console.WriteLine("Stoping the Spooler Service");
var StopSpoolerTask = ExecuteCmd.ExecuteCommandAsync("net stop spooler");
int numberOfPages = job.NumberOfPages;
Console.WriteLine("number of pages : " + numberOfPages);
if (settings.PageLimit < numberOfPages)
{
MessageBox.Show("You can only print " + settings.PageLimit + " pages per day", "Prompt",
MessageBoxButtons.OK,
MessageBoxIcon.Warning,
MessageBoxDefaultButton.Button1,
MessageBoxOptions.DefaultDesktopOnly);
ExecuteCmd.ExecuteCommandSync("net start spooler");
job.Cancel();
return;
}
PasswordPrompt form = new PasswordPrompt();
form.ShowDialog();
Console.WriteLine("Waiting for the spooler to stop to start it again...");
AsyncPump.Run(async delegate
{
await StopSpoolerTask;
});
var StartSpoolerTask = ExecuteCmd.ExecuteCommandAsync("net start spooler");
Task <PrintTrack> queryRequest = GetPrintTrack(form.StudentId);
long sid;
long.TryParse(form.StudentId, out sid);
var password = Password(sid);
if (form.Password == password)
{
Console.WriteLine("printing ...");
PrintTrack printTrack = null;
AsyncPump.Run(async delegate
{
printTrack = await queryRequest;
await StartSpoolerTask;
});
if (printTrack != null)
{
if (settings.PageLimit >= printTrack.PagesPrinted + numberOfPages)
{
job.Resume();
printTrack.PagesPrinted += numberOfPages;
db.SaveChanges();
}
else
{
job.Cancel();
MessageBox.Show("You can only print " + (settings.PageLimit - printTrack.PagesPrinted) + " pages more for today");
}
}
else
{
if (settings.PageLimit >= numberOfPages)
{
job.Resume();
MessageBox.Show("number of pages : " + numberOfPages);
PrintTrack newPrintTrack = new PrintTrack
{
StudentId = form.StudentId,
Password = form.Password,
PagesPrinted = numberOfPages,
Date = DateTime.Today,
ComputerName = System.Environment.MachineName
};
db.PrintTracks.Add(newPrintTrack);
db.SaveChanges();
}
}
}
else
{
AsyncPump.Run(async delegate
{
await StartSpoolerTask;
});
job.Cancel();
MessageBox.Show("Invalid password!");
}
form.Dispose();
Console.WriteLine("Done!");
}