Search
Module:
Directory

   Desktop Functions:

   Smart Device Functions:


Show Recent Changes
Subscribe (RSS)
Misc. Pages
Comments
FAQ
Helpful Tools
Playground
Suggested Reading
Website TODO List
Download Visual Studio Add-In

EnumPrinters (winspool)
 
.
Summary
Used to enumerate printer-information. See PrinterEnumFlags for the flags. See PRINTER_INFO_2 for the structure for level 2 info.

C# Signature:

[DllImport("winspool.drv", CharSet = CharSet.Auto, SetLastError = true)]

private static extern bool EnumPrinters(PrinterEnumFlags Flags, string Name, uint Level, IntPtr pPrinterEnum, uint cbBuf, ref uint pcbNeeded, ref uint pcReturned);

User-Defined Types:

PRINTER_INFO_2

PrinterEnumFlags

Notes:

You will need to import System.Runtime.InteropServices

Tips & Tricks:

Please add some!

Sample Code:

public static PRINTER_INFO_2[] enumPrinters(PrinterEnumFlags Flags)

{

    uint cbNeeded = 0;
    uint cReturned = 0;
    if (EnumPrinters(Flags, null, 2, IntPtr.Zero, 0, ref cbNeeded, ref cReturned))
    {
    return null;
    }
    int lastWin32Error = Marshal.GetLastWin32Error();
    if (lastWin32Error == ERROR_INSUFFICIENT_BUFFER)
    {
    IntPtr pAddr = Marshal.AllocHGlobal((int)cbNeeded);
    if (EnumPrinters(Flags, null, 2, pAddr, cbNeeded, ref cbNeeded, ref cReturned))
    {
        PRINTER_INFO_2[] printerInfo2 = new PRINTER_INFO_2[cReturned];
        int offset = pAddr.ToInt32();
        Type type = typeof(PRINTER_INFO_2);
        int increment = Marshal.SizeOf(type);
        for (int i = 0; i < cReturned; i++)
        {
        printerInfo2[i] = (PRINTER_INFO_2)Marshal.PtrToStructure(new IntPtr(offset), type);
        offset += increment;
        }
        Marshal.FreeHGlobal(pAddr);
        return printerInfo2;
    }
    lastWin32Error = Marshal.GetLastWin32Error();
    }
    throw new Win32Exception(lastWin32Error);

}

Alternative Managed API:

PrinterSettings.InstalledPrinters, but this only gives the name of the printers.

Documentation

Please edit this page!

Do you have...

  • helpful tips or sample code to share for using this API in managed code?
  • corrections to the existing content?
  • variations of the signature you want to share?
  • additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).

 
Access PInvoke.net directly from VS:
Terms of Use
Find References
Show Printable Version
Revisions