pinvoke.net: Edit: winspool.GetDefaultPrinter

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@pinvoke=http://pinvoke.net/$$$.htm

Summary: 
The GetDefaultPrinter function retrieves the printer name of the default printer for the current user on the local computer

!!!!C# Signature:
 [DllImport("winspool.drv", CharSet = CharSet.Auto, SetLastError = true)]
 public static extern bool GetDefaultPrinter(StringBuilder pszBuffer, ref int pcchBuffer);
!!!!VB Signature:
 Declare Function GetDefaultPrinter Lib "winspool.drv" Alias "GetDefaultPrinterA" _ 
 (ByVal pszBuffer As System.Text.StringBuilder, ByRef pcchBuffer As Int32) As Boolean
!!!!User-Defined Types:
None.

!!!!Notes:
Works even if print spooler service is stopped (W2K)

You will need to import System.Runtime.InteropServices.

!!!!Tips & Tricks:

!!!!Sample Code:
private const int ERROR_FILE_NOT_FOUND = 2;
private const int ERROR_INSUFFICIENT_BUFFER = 122;

public static String getDefaultPrinter()
{
    int pcchBuffer = 0;
    if (GetDefaultPrinter(null, ref pcchBuffer))
    {
        return null;
    }
    int lastWin32Error = Marshal.GetLastWin32Error();
    if (lastWin32Error == ERROR_INSUFFICIENT_BUFFER)
    {
        StringBuilder pszBuffer = new StringBuilder(pcchBuffer);
        if (GetDefaultPrinter(pszBuffer, ref pcchBuffer))
        {
            return pszBuffer.ToString();
        }
        lastWin32Error = Marshal.GetLastWin32Error();
    }
    if (lastWin32Error == ERROR_FILE_NOT_FOUND)
    {
        return null;
    }
    throw new Win32Exception(Marshal.GetLastWin32Error());
}

VB.Net sample code:
    Private Shared Function _getDefaultPrinterName() As String
        Dim pszBuffer As System.Text.StringBuilder = New System.Text.StringBuilder(100)
        pszBuffer.Length = 100
        Dim pcchBuffer As Integer = CInt(pszBuffer.Length)
        Dim retVal As Boolean = GetDefaultPrinter(pszBuffer, pcchBuffer)
        Return pszBuffer.ToString.Trim    'StringBuilder manages the null-terminated string
    End Function

!!!!Alternative Managed API:
Do you know one?  Please contribute it!

Documentation: GetDefaultPrinter@msdn on MSDN