/// <summary>
/// Deletes a printer from the designated server. Must have administrator access to it.
/// </summary>
/// <param name="sServer"></param>
/// <param name="sPrinter"></param>
public static void DeletePrinter(CredentialEntry ce, string sServer, string sPrinter)
{
Session.EnsureNullSession(sServer, ce);
// first, open the printer
string s = Canon(sServer) + @"\" + sPrinter;
int hPrinter;
PRINTER_DEFAULTS pd = new PRINTER_DEFAULTS();
pd.pDatatype = IntPtr.Zero;
pd.pDevMode = IntPtr.Zero;
pd.DesiredAccess = PRINTER_ALL_ACCESS;
IntPtr p = Marshal.AllocHGlobal(Marshal.SizeOf(pd));
Marshal.StructureToPtr(pd, p, false);
if (!OpenPrinter(s, out hPrinter, p))
{
// free memory
Marshal.DestroyStructure(p, typeof(PRINTER_DEFAULTS));
Marshal.FreeHGlobal(p);
int nError = Marshal.GetLastWin32Error();
Win32Exception we = new Win32Exception(nError);
if (nError == nErrorAccessDenied)
{
throw new AuthException(we);
}
else
{
throw we;
}
}
Marshal.DestroyStructure(p, typeof(PRINTER_DEFAULTS));
Marshal.FreeHGlobal(p);
// now remove it from AD
PRINTER_INFO_7 pi7 = new PRINTER_INFO_7();
pi7.pszObjectGUID = IntPtr.Zero;
pi7.dwAction = (uint) DSPRINT_OPTIONS.DSPRINT_UNPUBLISH;
p = Marshal.AllocHGlobal(Marshal.SizeOf(pi7));
Marshal.StructureToPtr(pi7, p, false);
SetPrinter(hPrinter, 7, p, 0);
// NOTE: we swallow any error since the operation may be left in a "pending" state rather
// than returning success or failure right away.
// free memory
Marshal.DestroyStructure(p, typeof(PRINTER_INFO_7));
Marshal.FreeHGlobal(p);
// finally, remove the printer
if (!DeletePrinter(hPrinter))
{
int nError = Marshal.GetLastWin32Error();
Win32Exception we = new Win32Exception(nError);
if (nError == nErrorAccessDenied)
{
throw new AuthException(we);
}
else
{
throw we;
}
}
}
/// <summary>
/// Deletes a printer from the designated server. Must have administrator access to it.
/// </summary>
/// <param name="sServer"></param>
/// <param name="sPrinter"></param>
public static void DeletePrinter(CredentialEntry ce, string sServer, string sPrinter)
{
Session.EnsureNullSession(sServer, ce);
// first, open the printer
string s = Canon(sServer) + @"\" + sPrinter;
int hPrinter;
PRINTER_DEFAULTS pd = new PRINTER_DEFAULTS();
pd.pDatatype = IntPtr.Zero;
pd.pDevMode = IntPtr.Zero;
pd.DesiredAccess = PRINTER_ALL_ACCESS;
IntPtr p = Marshal.AllocHGlobal(Marshal.SizeOf(pd));
Marshal.StructureToPtr(pd, p, false);
if (!OpenPrinter(s, out hPrinter, p))
{
// free memory
Marshal.DestroyStructure(p, typeof(PRINTER_DEFAULTS));
Marshal.FreeHGlobal(p);
int nError = Marshal.GetLastWin32Error();
Win32Exception we = new Win32Exception(nError);
if (nError == nErrorAccessDenied)
{
throw new AuthException(we);
}
else
{
throw we;
}
}
Marshal.DestroyStructure(p, typeof(PRINTER_DEFAULTS));
Marshal.FreeHGlobal(p);
// now remove it from AD
PRINTER_INFO_7 pi7 = new PRINTER_INFO_7();
pi7.pszObjectGUID = IntPtr.Zero;
pi7.dwAction = (uint)DSPRINT_OPTIONS.DSPRINT_UNPUBLISH;
p = Marshal.AllocHGlobal(Marshal.SizeOf(pi7));
Marshal.StructureToPtr(pi7, p, false);
SetPrinter(hPrinter, 7, p, 0);
// NOTE: we swallow any error since the operation may be left in a "pending" state rather
// than returning success or failure right away.
// free memory
Marshal.DestroyStructure(p, typeof(PRINTER_INFO_7));
Marshal.FreeHGlobal(p);
// finally, remove the printer
if (!DeletePrinter(hPrinter))
{
int nError = Marshal.GetLastWin32Error();
Win32Exception we = new Win32Exception(nError);
if (nError == nErrorAccessDenied)
{
throw new AuthException(we);
}
else
{
throw we;
}
}
}
