• Introduction Some of the API calls used in this example are only supported on Windows NT, 2000, XP and. Hp Printer Download For Mac Os X. NET server. Therefore this technique does not apply to Windows 95, Windows 98 or Windows ME. Although VB.NET printer handling has improved immeasurably over that offered by Visual Basic 6 and the new extensions to System.Drawing.Printing have also helped, there is still a need to turn to the Windows API in order to monitor a print queue.

Get a Handle to the Printer You Want to Monitor All of the API calls that access the printer or spooler need a printer handle. This is obtained by passing the unique printer device name to the OpenPrinter API call and must be released by the ClosePrinter API call when it is no longer needed. _ Public Function OpenPrinter( ByVal pPrinterName As String, _ ByRef phPrinter As IntPtr, _ ByVal pDefault As PRINTER_DEFAULTS _ ) As Boolean End Function _ Public Function ClosePrinter( ByVal hPrinter As IntPtr) As Boolean End Function Ask for the Notifications You are Interested in To minimise the impact of a printer watch on system performance, we can specify precisely which printer events we are interested in. Member 13285076 14-Sep-17 5:32 14-Sep-17 5:32 Hi, in one of you other comments you mentioned the latest version is on CodePlex, but I can't find it.

I'd really appreciate a link I'm also having some trouble when using this as part of a WCF service, PrinterInformationChanged works fine but PrinterMonitor_JobAdded raises a win32exception (The parameter is incorrect) in SpoolerStructs.vb, line 75 and line 207 Cheers Edit: update, PrinterMonitor_JobAdded not working seems to be an issue with a 64bit build. If I build both the PrinterQueWatch.dll and my winforms to x86, JobAdded works. Yes I understand that now. On your SetupFields method you already have that flag. Can you be more specific?

Printing directly to specialized LPT1: device in VB.NET. Visual Basic.NET Forums on Bytes. Windows driver/printer name? Send Raw Data to a Printer.

Where you setup the flags to pass to the FindNextPrinterChangeNotification method? I understand that I need to change jobInfo class to store the value of the port to have access to it on the event handler. Ethernet Adapter Driver Windows 7 Hp. The part that I do not understand is the call to FindNextPrinterChangeNotification (I guess that is it here where I need to change some parameter). Sorry to bother you on this and many thanks for your help. Tweber2012 3-Jul-17 2:29 3-Jul-17 2:29 Thanks for your amazing efforts!

I'm getting an exception in InitJobInfo in the line ji1 = New JOB_INFO_2(mhPrinter, midJob) as well in the 'ji2 = ' line. The error is 'Wrong parameter' for both lines. Arguments are: mhPrinter = &HDC87A8 midJob = 0 midJob is always 0 when I print a document. During the constructor ('Friend Sub New(ByVal hPrinter As IntPtr, ByVal idJob As Int32)'), midJob is always non-zero. When I inspect PrintNotifyInfo_New, I can see that itemdata.dwId = 0. If itemdata.dwId = 0 Then If PrinterMonitorComponent.ComponentTraceSwitch.TraceWarning Then Trace.WriteLine( ' JOB_NOTIFY_TYPE has zero job id ') End If End If TraceWarning is false.