Get list of Installed printers using Sharepoint 2010

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C#2.0

C#

VB

SharePoint2010

I want to get the list of installed printers when i am clicking the button in sharepoint 2010.
I have written the code in C# application for getting printers list.In this case I am getting all installed printers in the list.Please find the below code which I have written in C# application

System.Management.ManagementScope objMS = new System.Management.ManagementScope(ManagementPath.DefaultPath);
objMS.Connect();

SelectQuery objQuery = new SelectQuery("SELECT * FROM Win32_Printer");
ManagementObjectSearcher objMOS = new ManagementObjectSearcher(objMS, objQuery);
System.Management.ManagementObjectCollection objMOC = objMOS.Get();
foreach (ManagementObject Printers in objMOC)
{
if (Convert.ToBoolean(Printers["Default"])) // LOCAL PRINTERS.
{
cmbLocalPrinters.Items.Add(Printers["Name"]);
}
//if (Convert.ToBoolean(Printers["Local"])) // LOCAL PRINTERS.
//{
// cmbLocalPrinters.Items.Add(Printers["Name"]);
//}
//if (Convert.ToBoolean(Printers["Network"])) // ALL NETWORK PRINTERS.
//{
// cmbNetworkPrinters.Items.Add(Printers["Name"]);
//}
}

But same code when I am written in sharepoint project, there I am not getting installed printers list.Please help me...

I have added a visual web part in Sharepoint project and then on that web part I have added one list box and button and on click of that button I have written my code.When same code I am writing on my dot net web application I am getting all installed printers list.But in sharepoint project I am not getting that printers list only send note and xps document are displaying