public void MultipleFields()
{
// Use a random comment then we don't have t worry about it being set from a previous run.
var randomComment = DateTime.Now.Ticks.ToString();
uint priority;
var options = new NotifyOptions
{
Types = new List <NotifyOptionsType>
{
new NotifyOptionsType()
{
Fields = new List <ushort>
{
(ushort)PRINTER_NOTIFY_FIELD.PRINTER_NOTIFY_FIELD_COMMENT,
(ushort)PRINTER_NOTIFY_FIELD.PRINTER_NOTIFY_FIELD_LOCATION,
(ushort)PRINTER_NOTIFY_FIELD.PRINTER_NOTIFY_FIELD_PRIORITY,
},
Type = NOTIFY_TYPE.PRINTER_NOTIFY_TYPE,
}
}
};
using var changeNotification = ChangeNotification.Create(0, NameConstants.PrinterName, PRINTER_NOTIFY_CATEGORY.PRINTER_NOTIFY_CATEGORY_ALL, options);
// If we don't close the printer handle before calling WaitOne then WaitOne can block indefinitely
using (var printer = new SafePrinter(NameConstants.PrinterName))
{
// This should trigger a change
var pi2 = printer.GetPrinter();
pi2.pComment = randomComment + "Comment";
pi2.pLocation = randomComment + "Location";
priority = ++pi2.Priority & 0xFF;
printer.SetPrinter(pi2, 0);
}
changeNotification.WaitHandle.WaitOne();
var change = changeNotification.FindNextPrinterChangeNotification(true);
Assert.That(change.Change == 0); // We didn't request change monitoring
Assert.That(change.Data.Count, Is.EqualTo(3));
var comment = change.Data.First(d => d.Field == (int)PRINTER_NOTIFY_FIELD.PRINTER_NOTIFY_FIELD_COMMENT).Value;
Assert.That(comment, Is.EqualTo(randomComment + "Comment"));
var location = change.Data.First(d => d.Field == (int)PRINTER_NOTIFY_FIELD.PRINTER_NOTIFY_FIELD_LOCATION).Value;
Assert.That(location, Is.EqualTo(randomComment + "Location"));
var newPriority = change.Data.First(d => d.Field == (int)PRINTER_NOTIFY_FIELD.PRINTER_NOTIFY_FIELD_PRIORITY).Value;
Assert.That(newPriority, Is.EqualTo(priority));
}
public void OneTimeSetUp()
{
// We only delete the port and printer if they didn't exist when tests started'
_portExistedBeforeTests = NulPortExists();
_printerExistedBeforeTests = NotifyPrinterExists();
if (!_portExistedBeforeTests)
{
SafePrinter.AddPort(NameConstants.PortName);
}
if (!_printerExistedBeforeTests)
{
SafePrinter.AddPrinter(NameConstants.PrinterName, NameConstants.PortName, NameConstants.DriverName);
}
}
public void Comment()
{
// Use a random comment then we don't have t worry about it being set from a previous run.
var randomComment = DateTime.Now.Ticks.ToString();
var options = new NotifyOptions
{
Types = new List <NotifyOptionsType>
{
new NotifyOptionsType()
{
Fields = new List <ushort> {
(ushort)PRINTER_NOTIFY_FIELD.PRINTER_NOTIFY_FIELD_COMMENT
},
Type = NOTIFY_TYPE.PRINTER_NOTIFY_TYPE,
}
}
};
using var changeNotification = ChangeNotification.Create(0, NameConstants.PrinterName, PRINTER_NOTIFY_CATEGORY.PRINTER_NOTIFY_CATEGORY_ALL, options);
// If we don't close the printer handle before calling WaitOne then WaitOne can block indefinitely
using (var printer = new SafePrinter(NameConstants.PrinterName))
{
// This should trigger a change
var pi2 = printer.GetPrinter();
pi2.pComment = randomComment;
pi2.pSecurityDescriptor = IntPtr.Zero;
printer.SetPrinter(pi2, 0);
}
changeNotification.WaitHandle.WaitOne();
var change = changeNotification.FindNextPrinterChangeNotification(false);
Assert.That(change.Change == 0); // We didn't request change monitoring
Assert.That(change.Data.Count, Is.EqualTo(1));
Assert.That(change.Data[0].Value, Is.EqualTo(randomComment));
}
public void OneTimeTearDown()
{
// We can't delete the port until we have deleted the printer
if (!_printerExistedBeforeTests)
{
// Setting the printer port makes deleting the port more reliable
using (var printer = new SafePrinter(NameConstants.PrinterName))
{
var pi2 = printer.GetPrinter();
pi2.pPortName = "FILE:";
printer.SetPrinter(pi2, 0);
}
using var printer2 = new SafePrinter(NameConstants.PrinterName);
printer2.Delete();
}
if (!_portExistedBeforeTests)
{
SafePrinter.DeletePort(NameConstants.PortName);
}
}
public void SetPrinter()
{
using var changeNotification = ChangeNotification.Create(PRINTER_CHANGE.PRINTER_CHANGE_PRINTER, NameConstants.PrinterName, PRINTER_NOTIFY_CATEGORY.PRINTER_NOTIFY_CATEGORY_ALL, null);
// Make sure changeNotification isn't signaled before we start
Assert.That(changeNotification.WaitHandle.WaitOne(0), Is.False);
// If we don't close the printer handle before calling WaitOne then WaitOne can block indefinitely
using (var printer = new SafePrinter(NameConstants.PrinterName))
{
// This should trigger a change
var pi2 = printer.GetPrinter();
pi2.pComment = "A printer comment";
printer.SetPrinter(pi2, 0);
}
changeNotification.WaitHandle.WaitOne();
var change = changeNotification.FindNextPrinterChangeNotification(false);
Assert.That(change.Change == PRINTER_CHANGE.PRINTER_CHANGE_SET_PRINTER);
}
private static bool NotifyPrinterExists()
{
return(SafePrinter.EnumPrinters().Any(pi => pi.pPrinterName.Equals(NameConstants.PrinterName, StringComparison.CurrentCultureIgnoreCase)));
}
private static bool NulPortExists()
{
return(SafePrinter.EnumPorts().Any(pi => pi.Name.Equals(NameConstants.PortName, StringComparison.CurrentCultureIgnoreCase)));
}
