//public static bool IsPlug(string printerName)
//{
// if (printerName.IsNullOrEmptyOrSpaces()) return false;
// var scope = new ManagementScope(@"\root\cimv2");
// scope.Connect();
// var allPrinters = new ManagementObjectSearcher("SELECT * FROM Win32_Printer");
// return (from ManagementBaseObject printer in allPrinters.Get()
// let name = printer.GetPropertyValue("Name").ToString()
// where String.Equals(printerName, name, StringComparison.InvariantCultureIgnoreCase)
// select (bool) printer.GetPropertyValue("WorkOffline")).FirstOrDefault();
//}
public static bool IsPrinterBusy(string printerName)
{
var printJobCollection = new StringCollection();
const string searchQuery = "SELECT * FROM Win32_PrintJob";
/*searchQuery can also be mentioned with where Attribute,
* but this is not working in Windows 2000 / ME / 98 machines
* and throws Invalid query error*/
var searchPrintJobs = new ManagementObjectSearcher(searchQuery);
var prntJobCollection = searchPrintJobs.Get();
foreach (var prntJob in prntJobCollection)
{
var jobName = prntJob.Properties["Name"].Value.ToString();
//Job name would be of the format [Printer name], [Job ID]
var splitArr = new char[1];
splitArr[0] = Convert.ToChar(",");
var prnterName = jobName.Split(splitArr)[0];
var documentName = prntJob.Properties["Document"].Value.ToString();
if (String.Compare(prnterName, printerName, StringComparison.OrdinalIgnoreCase) == 0)
{
printJobCollection.Add(documentName);
}
}
return(!printJobCollection.IsNullOrEmpty());
}
public void IsNullOrEmpty_ShouldReturnFalseForNonEmptyCollection()
{
var collection = new StringCollection {
"foo"
};
Assert.That(collection.IsNullOrEmpty(), Is.False);
}
public void IsNullOrEmpty_ShouldHandleNull()
{
StringCollection testCollection = null;
Assert.That(testCollection.IsNullOrEmpty(), Is.True);
}