public Stream Printers()
{
var printers = RawPrinterHelper.GetPrinters();
var jss = new JavaScriptSerializer();
string jsonClient = jss.Serialize(printers);
WebOperationContext.Current.OutgoingResponse.ContentType = "application/json; charset=utf-8";
return(new MemoryStream(Encoding.UTF8.GetBytes(jsonClient)));
}
private bool IsExistingPrinter(string printer)
{
var printers = RawPrinterHelper.GetPrinters();
bool response = false;
foreach (Dictionary <string, object> p in printers)
{
if (p["Name"].ToString() == printer)
{
response = true;
break;
}
}
return(response);
}
public Stream Print(System.IO.Stream pStream)
{
var jss = new JavaScriptSerializer();
string value = "";
string response = "";
string dataType = "RAW";
string defaultDataType = "RAW";
string printer = "";
string name = "";
string data = "";
using (var reader = new StreamReader(pStream, Encoding.UTF8))
{
value = reader.ReadToEnd();
}
var printData = jss.Deserialize <Dictionary <string, string> >(value);
if (printData.ContainsKey("Printer") && printData.ContainsKey("Name") && printData.ContainsKey("Data"))
{
printer = printData["Printer"];
name = printData["Name"];
data = printData["Data"];
//Check for Printer Name validity and DataType default
if (printData.ContainsKey("DataType"))
{
dataType = printData["DataType"].Trim();
}
var printers = RawPrinterHelper.GetPrinters();
bool isValidPrinter = false;
foreach (Dictionary <string, object> p in printers)
{
if (p["Name"].ToString() == printer)
{
defaultDataType = p["PrintJobDataType"].ToString();
isValidPrinter = true;
break;
}
}
if (isValidPrinter)
{
if (!IsValidDataType(dataType))
{
dataType = defaultDataType;
}
bool successPrint = RawPrinterHelper.SendStringToPrinter(printer, name, data, dataType);
if (successPrint)
{
response = "Print request sent to " + printer + " as " + dataType + " data.";
}
else
{
response = "An error occured during print request: " + Marshal.GetLastWin32Error();
}
}
else
{
response = printer + " is not found in the Cameleon Printer Service server.";
}
}
else
{
response = "Print requests requires a 'Printer', 'Name' and 'Data' parameters.";
}
return(new MemoryStream(Encoding.UTF8.GetBytes(@"{""Response"" : " + @"""" + response + @"""}")));
}