intercepting a print job

[thE_GB_Man]

hey all ... how would i have my program be set to visible when it detects a print job on a certian printer?, and pause it untill they fill out info?

thanks

[thE_GB_Man]

plz ppl!!! i really need this

[erickwidya]

i got this code from msdn..but it's in C and i don't how to do it in VB..and i don't know it can post here since it in C..
well hope this can give u any clue..plz tell me the code in VB if u have..thanks

   BOOL GetJobs(HANDLE hPrinter,        /* Handle to the printer. */ 

                JOB_INFO_2 **ppJobInfo, /* Pointer to be filled.  */ 
                int *pcJobs,            /* Count of jobs filled.  */ 
                DWORD *pStatus)         /* Print Queue status.    */ 

   {

   DWORD               cByteNeeded,
                        nReturned,
                        cByteUsed;
    JOB_INFO_2          *pJobStorage = NULL;
    PRINTER_INFO_2       *pPrinterInfo = NULL;

   /* Get the buffer size needed. */ 
       if (!GetPrinter(hPrinter, 2, NULL, 0, &cByteNeeded))
       {
           if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
               return FALSE;
       }

       pPrinterInfo = (PRINTER_INFO_2 *)malloc(cByteNeeded);
       if (!(pPrinterInfo))
           /* Failure to allocate memory. */ 
           return FALSE;

       /* Get the printer information. */ 
       if (!GetPrinter(hPrinter,
               2,
               (LPSTR)pPrinterInfo,
               cByteNeeded,
               &cByteUsed))
       {
           /* Failure to access the printer. */ 
           free(pPrinterInfo);
           pPrinterInfo = NULL;
           return FALSE;
       }

       /* Get job storage space. */ 
       if (!EnumJobs(hPrinter,
               0,
               pPrinterInfo->cJobs,
               2,
               NULL,
               0,
               (LPDWORD)&cByteNeeded,
               (LPDWORD)&nReturned))
       {
           if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
           {
               free(pPrinterInfo);
               pPrinterInfo = NULL;
               return FALSE;
           }
       }

       pJobStorage = (JOB_INFO_2 *)malloc(cByteNeeded);
       if (!pJobStorage)
       {
           /* Failure to allocate Job storage space. */ 
           free(pPrinterInfo);
           pPrinterInfo = NULL;
           return FALSE;
       }

       ZeroMemory(pJobStorage, cByteNeeded);

       /* Get the list of jobs. */ 
       if (!EnumJobs(hPrinter,
               0,
               pPrinterInfo->cJobs,
               2,
               (LPBYTE)pJobStorage,
               cByteNeeded,
               (LPDWORD)&cByteUsed,
               (LPDWORD)&nReturned))
       {
           free(pPrinterInfo);
           free(pJobStorage);
           pJobStorage = NULL;
           pPrinterInfo = NULL;
           return FALSE;
       }

       /*
        *  Return the information.
        */ 
       *pcJobs = nReturned;
       *pStatus = pPrinterInfo->Status;
       *ppJobInfo = pJobStorage;
       free(pPrinterInfo);

       return TRUE;

   }

   BOOL IsPrinterError(HANDLE hPrinter)
   {

       JOB_INFO_2  *pJobs;
       int         cJobs,
                   i;
       DWORD       dwPrinterStatus;

       /*
        *  Get the state information for the Printer Queue and
        *  the jobs in the Printer Queue.
        */ 
       if (!GetJobs(hPrinter, &pJobs, &cJobs, &dwPrinterStatus))
           return FALSE;

       /*
        *  If the Printer reports an error, believe it.
        */ 
       if (dwPrinterStatus &
           (PRINTER_STATUS_ERROR |
           PRINTER_STATUS_PAPER_JAM |
           PRINTER_STATUS_PAPER_OUT |
           PRINTER_STATUS_PAPER_PROBLEM |
           PRINTER_STATUS_OUTPUT_BIN_FULL |
           PRINTER_STATUS_NOT_AVAILABLE |
           PRINTER_STATUS_NO_TONER |
           PRINTER_STATUS_OUT_OF_MEMORY |
           PRINTER_STATUS_OFFLINE |
           PRINTER_STATUS_DOOR_OPEN))
       {
           return TRUE;
       }

       /*
        *  Find the Job in the Queue that is printing.
        */ 
       for (i=0; i < cJobs; i++)
       {
           if (pJobs[i].Status & JOB_STATUS_PRINTING)
           {
               /*
                *  If the job is in an error state,
                *  report an error for the printer.
                *  Code could be inserted here to
                *  attempt an interpretation of the
                *  pStatus member as well.
                */ 
               if (pJobs[i].Status &
                   (JOB_STATUS_ERROR |
                   JOB_STATUS_OFFLINE |
                   JOB_STATUS_PAPEROUT |
                   JOB_STATUS_BLOCKED_DEVQ))
               {
                   return TRUE;
               }
           }
       }

       /*
        *  No error condition.
        */ 
       return FALSE;

   }

regards

[Clearcode]

There's articles on how to do this in Visual Basic on my website articles section

[erickwidya]

thanks clearcode for the link..