public bool IsPdfScribePrinterInstalled()
{
bool pdfScribeInstalled = false;
PRINTER_DEFAULTS scribeDefaults = new PRINTER_DEFAULTS();
scribeDefaults.DesiredAccess = 0x00008; // Use access
scribeDefaults.pDatatype = null;
scribeDefaults.pDevMode = IntPtr.Zero;
IntPtr scribeHandle = IntPtr.Zero;
if (NativeMethods.OpenPrinter(PRINTERNAME, ref scribeHandle, scribeDefaults) != 0)
{
pdfScribeInstalled = true;
}
else
{
int errorCode = Marshal.GetLastWin32Error();
if (errorCode == 0x5)
{
pdfScribeInstalled = true; // Printer is installed, but user
}
// has no privileges to use it
}
return(pdfScribeInstalled);
}
/// <summary>
///
/// </summary>
/// <param name="portName"></param>
/// <param name="xcvDataOperation"></param>
/// <returns></returns>
/// <remarks>I can't remember the name/link of the developer who wrote this code originally,
/// so I can't provide a link or credit.</remarks>
private int DoXcvDataPortOperation(string portName, string portMonitor, string xcvDataOperation)
{
int win32ErrorCode;
PRINTER_DEFAULTS def = new PRINTER_DEFAULTS();
def.pDatatype = null;
def.pDevMode = IntPtr.Zero;
def.DesiredAccess = 1; //Server Access Administer
IntPtr hPrinter = IntPtr.Zero;
if (NativeMethods.OpenPrinter(",XcvMonitor " + portMonitor, ref hPrinter, def) != 0)
{
if (!portName.EndsWith("\0"))
{
portName += "\0"; // Must be a null terminated string
}
// Must get the size in bytes. Rememeber .NET strings are formed by 2-byte characters
uint size = (uint)(portName.Length * 2);
// Alloc memory in HGlobal to set the portName
IntPtr portPtr = Marshal.AllocHGlobal((int)size);
Marshal.Copy(portName.ToCharArray(), 0, portPtr, portName.Length);
uint needed; // Not that needed in fact...
uint xcvResult; // Will receive de result here
NativeMethods.XcvData(hPrinter, xcvDataOperation, portPtr, size, IntPtr.Zero, 0, out needed, out xcvResult);
NativeMethods.ClosePrinter(hPrinter);
Marshal.FreeHGlobal(portPtr);
win32ErrorCode = (int)xcvResult;
}
else
{
win32ErrorCode = Marshal.GetLastWin32Error();
}
return(win32ErrorCode);
}
private bool DeletePdfScribePrinter()
{
bool printerDeleted = false;
PRINTER_DEFAULTS scribeDefaults = new PRINTER_DEFAULTS();
scribeDefaults.DesiredAccess = 0x000F000C; // All access
scribeDefaults.pDatatype = null;
scribeDefaults.pDevMode = IntPtr.Zero;
IntPtr scribeHandle = IntPtr.Zero;
try
{
if (NativeMethods.OpenPrinter(PRINTERNAME, ref scribeHandle, scribeDefaults) != 0)
{
if (NativeMethods.DeletePrinter(scribeHandle))
{
printerDeleted = true;
}
}
else
{
logEventSource.TraceEvent(TraceEventType.Error,
(int)TraceEventType.Error,
"Could not delete PDF Scribe virtual printer. " +
String.Format(WIN32ERROR, Marshal.GetLastWin32Error().ToString()));
}
}
finally
{
if (scribeHandle != IntPtr.Zero)
{
NativeMethods.ClosePrinter(scribeHandle);
}
}
return(printerDeleted);
}
internal static extern int OpenPrinter(string pPrinterName,
ref IntPtr phPrinter,
PRINTER_DEFAULTS pDefault);