How to know that a print job has finished.
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From: Pankaj on 4 Dec 2006 07:46 hi all, I am trying to monitor the printer queue by using the Win32 Apis FindFirstPrinterChangeNotification and FindNextPrinterChangeNotification. But, I am not getting two information....one is the no. of pages printed and the job completion indication. For the first one I am setting the JOB_NOTIFY_FIELD_PAGES_PRINTED and for the second one JOB_NOTIFY_FIELD_STATUS is being used, in the required member of the PRINTER_NOTIFY_OPTIONS_TYPE structure. In the case of no. of pages printed, i get correct values, if the document is more than 1 page, but always get 0 when the document is having a single page. why is this so? And as regard the second thing the JOB_STATUS_PRINTED is never received. My code is as below: void StartNotifications(void) { HANDLE hPrinter = NULL; PRINTER_NOTIFY_OPTIONS * p_NotifyOptions = NULL; PRINTER_NOTIFY_OPTIONS_TYPE arr_NotifyOptionsType[2]; PWORD pJobFields, pPrinterFields; HANDLE hwndNotify = NULL; DWORD dwChanged = 0; PRINTER_NOTIFY_INFO * p_OutPut = NULL; if(OpenPrinter(_T("\\\\NECHCLSTDC\\HP LaserJet 4345 mfp PCL 5e"), &hPrinter, NULL)) { pJobFields = (PWORD)malloc(5 * sizeof(WORD)); pJobFields[0] = JOB_NOTIFY_FIELD_USER_NAME; pJobFields[1] = JOB_NOTIFY_FIELD_PAGES_PRINTED; pJobFields[2] = JOB_NOTIFY_FIELD_TOTAL_BYTES; pJobFields[3] = JOB_NOTIFY_FIELD_STATUS; pJobFields[4] = JOB_NOTIFY_FIELD_STATUS_STRING; arr_NotifyOptionsType[0].Type = JOB_NOTIFY_TYPE ; arr_NotifyOptionsType[0].pFields = pJobFields; arr_NotifyOptionsType[0].Count = 5; pPrinterFields = (PWORD)malloc(2 * sizeof(WORD)); pPrinterFields[0] = PRINTER_NOTIFY_FIELD_PRINTER_NAME; pPrinterFields[1] = PRINTER_NOTIFY_FIELD_AVERAGE_PPM; arr_NotifyOptionsType[1].Type = PRINTER_NOTIFY_TYPE ; arr_NotifyOptionsType[1].pFields = pPrinterFields; arr_NotifyOptionsType[1].Count = 2; p_NotifyOptions = new PRINTER_NOTIFY_OPTIONS; p_NotifyOptions->Count = 2; p_NotifyOptions->Version = 2; p_NotifyOptions->pTypes = arr_NotifyOptionsType; p_NotifyOptions->Flags = PRINTER_NOTIFY_OPTIONS_REFRESH; if((hwndNotify = FindFirstPrinterChangeNotification(hPrinter, 0, 0, p_NotifyOptions)) != INVALID_HANDLE_VALUE) { while(hwndNotify != INVALID_HANDLE_VALUE) { if(WaitForSingleObject(hwndNotify, 0) == WAIT_OBJECT_0) { FindNextPrinterChangeNotification(hwndNotify, &dwChanged, (LPVOID)p_NotifyOptions, (LPVOID*)&p_OutPut); for (int i=0;i<p_OutPut->Count;i++) { if(p_OutPut->aData[i].Type == JOB_NOTIFY_TYPE) { if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_USER_NAME) { MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) ,_T("Status"),MB_OK); } if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_PAGES_PRINTED) { TCHAR buff[25]; _stprintf(buff,_T("PP = %d Job ID %ld"),p_OutPut->aData[i].NotifyData.adwData[0], p_OutPut->aData[i].Id); MessageBox(NULL,buff ,_T("Status"),MB_OK); } if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS) { if(p_OutPut->aData[i].NotifyData.adwData[0] & JOB_STATUS_PRINTED) MessageBox(NULL,_T("Job Done") ,_T("Status"),MB_OK); } if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS_STRING) { MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) ,_T("Status"),MB_OK); } } } } } } else { DWORD dwError = GetLastError(); dwError += 0; } } else { DWORD dwError = GetLastError(); dwError += 0; } } It will be great if some one help me out with this... Thanks Pankaj
From: Pankaj on 13 Dec 2006 02:04 hi all.... can some one help me out with the problem stated below. Thanks Pankaj Pankaj wrote: > hi all, > > I am trying to monitor the printer queue by using the Win32 Apis > FindFirstPrinterChangeNotification and > FindNextPrinterChangeNotification. > But, I am not getting two information....one is the no. of pages > printed and the job completion indication. > For the first one I am setting the JOB_NOTIFY_FIELD_PAGES_PRINTED and > for the second one JOB_NOTIFY_FIELD_STATUS is being used, in the > required member of the PRINTER_NOTIFY_OPTIONS_TYPE structure. > > In the case of no. of pages printed, i get correct values, if the > document is more than 1 page, but always get 0 when the document is > having a single page. why is this so? > And as regard the second thing the JOB_STATUS_PRINTED is never > received. My code is as below: > > > void StartNotifications(void) > { > HANDLE hPrinter = NULL; > PRINTER_NOTIFY_OPTIONS * p_NotifyOptions = NULL; > PRINTER_NOTIFY_OPTIONS_TYPE arr_NotifyOptionsType[2]; > PWORD pJobFields, pPrinterFields; > HANDLE hwndNotify = NULL; > DWORD dwChanged = 0; > > PRINTER_NOTIFY_INFO * p_OutPut = NULL; > > if(OpenPrinter(_T("\\\\NECHCLSTDC\\HP LaserJet 4345 mfp PCL 5e"), > &hPrinter, NULL)) > { > pJobFields = (PWORD)malloc(5 * sizeof(WORD)); > pJobFields[0] = JOB_NOTIFY_FIELD_USER_NAME; > pJobFields[1] = JOB_NOTIFY_FIELD_PAGES_PRINTED; > pJobFields[2] = JOB_NOTIFY_FIELD_TOTAL_BYTES; > pJobFields[3] = JOB_NOTIFY_FIELD_STATUS; > pJobFields[4] = JOB_NOTIFY_FIELD_STATUS_STRING; > > arr_NotifyOptionsType[0].Type = JOB_NOTIFY_TYPE ; > arr_NotifyOptionsType[0].pFields = pJobFields; > arr_NotifyOptionsType[0].Count = 5; > > pPrinterFields = (PWORD)malloc(2 * sizeof(WORD)); > pPrinterFields[0] = PRINTER_NOTIFY_FIELD_PRINTER_NAME; > pPrinterFields[1] = PRINTER_NOTIFY_FIELD_AVERAGE_PPM; > > arr_NotifyOptionsType[1].Type = PRINTER_NOTIFY_TYPE ; > arr_NotifyOptionsType[1].pFields = pPrinterFields; > arr_NotifyOptionsType[1].Count = 2; > > > > p_NotifyOptions = new PRINTER_NOTIFY_OPTIONS; > > p_NotifyOptions->Count = 2; > p_NotifyOptions->Version = 2; > p_NotifyOptions->pTypes = arr_NotifyOptionsType; > p_NotifyOptions->Flags = PRINTER_NOTIFY_OPTIONS_REFRESH; > > if((hwndNotify = FindFirstPrinterChangeNotification(hPrinter, 0, 0, > p_NotifyOptions)) != INVALID_HANDLE_VALUE) > { > while(hwndNotify != INVALID_HANDLE_VALUE) > { > if(WaitForSingleObject(hwndNotify, 0) == WAIT_OBJECT_0) > { > > FindNextPrinterChangeNotification(hwndNotify, &dwChanged, > (LPVOID)p_NotifyOptions, (LPVOID*)&p_OutPut); > for (int i=0;i<p_OutPut->Count;i++) > { > if(p_OutPut->aData[i].Type == JOB_NOTIFY_TYPE) > { > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_USER_NAME) > { > MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) > ,_T("Status"),MB_OK); > } > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_PAGES_PRINTED) > { > TCHAR buff[25]; > _stprintf(buff,_T("PP = %d Job ID > %ld"),p_OutPut->aData[i].NotifyData.adwData[0], p_OutPut->aData[i].Id); > > MessageBox(NULL,buff ,_T("Status"),MB_OK); > } > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS) > { > if(p_OutPut->aData[i].NotifyData.adwData[0] & JOB_STATUS_PRINTED) > MessageBox(NULL,_T("Job Done") ,_T("Status"),MB_OK); > } > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS_STRING) > { > MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) > ,_T("Status"),MB_OK); > } > } > } > } > } > } > else > { > DWORD dwError = GetLastError(); > dwError += 0; > } > } > else > { > DWORD dwError = GetLastError(); > dwError += 0; > } > } > > > > It will be great if some one help me out with this... > > Thanks > Pankaj
From: Sten Westerback (MVP SDK) on 13 Dec 2006 05:11 "Pankaj" <pnkjadlakha(a)gmail.com> wrote in message news:1165236408.717688.83540(a)16g2000cwy.googlegroups.com... > hi all, > > I am trying to monitor the printer queue by using the Win32 Apis > FindFirstPrinterChangeNotification and > FindNextPrinterChangeNotification. > But, I am not getting two information....one is the no. of pages > printed and the job completion indication. > For the first one I am setting the JOB_NOTIFY_FIELD_PAGES_PRINTED and > for the second one JOB_NOTIFY_FIELD_STATUS is being used, in the > required member of the PRINTER_NOTIFY_OPTIONS_TYPE structure. > > In the case of no. of pages printed, i get correct values, if the > document is more than 1 page, but always get 0 when the document is > having a single page. why is this so? > And as regard the second thing the JOB_STATUS_PRINTED is never > received. My code is as below: > > > void StartNotifications(void) > { > HANDLE hPrinter = NULL; > PRINTER_NOTIFY_OPTIONS * p_NotifyOptions = NULL; > PRINTER_NOTIFY_OPTIONS_TYPE arr_NotifyOptionsType[2]; > PWORD pJobFields, pPrinterFields; > HANDLE hwndNotify = NULL; > DWORD dwChanged = 0; > > PRINTER_NOTIFY_INFO * p_OutPut = NULL; > > if(OpenPrinter(_T("\\\\NECHCLSTDC\\HP LaserJet 4345 mfp PCL 5e"), > &hPrinter, NULL)) > { > pJobFields = (PWORD)malloc(5 * sizeof(WORD)); > pJobFields[0] = JOB_NOTIFY_FIELD_USER_NAME; > pJobFields[1] = JOB_NOTIFY_FIELD_PAGES_PRINTED; > pJobFields[2] = JOB_NOTIFY_FIELD_TOTAL_BYTES; > pJobFields[3] = JOB_NOTIFY_FIELD_STATUS; > pJobFields[4] = JOB_NOTIFY_FIELD_STATUS_STRING; > > arr_NotifyOptionsType[0].Type = JOB_NOTIFY_TYPE ; > arr_NotifyOptionsType[0].pFields = pJobFields; > arr_NotifyOptionsType[0].Count = 5; > > pPrinterFields = (PWORD)malloc(2 * sizeof(WORD)); > pPrinterFields[0] = PRINTER_NOTIFY_FIELD_PRINTER_NAME; > pPrinterFields[1] = PRINTER_NOTIFY_FIELD_AVERAGE_PPM; > > arr_NotifyOptionsType[1].Type = PRINTER_NOTIFY_TYPE ; > arr_NotifyOptionsType[1].pFields = pPrinterFields; > arr_NotifyOptionsType[1].Count = 2; > > > > p_NotifyOptions = new PRINTER_NOTIFY_OPTIONS; > > p_NotifyOptions->Count = 2; > p_NotifyOptions->Version = 2; > p_NotifyOptions->pTypes = arr_NotifyOptionsType; > p_NotifyOptions->Flags = PRINTER_NOTIFY_OPTIONS_REFRESH; > > if((hwndNotify = FindFirstPrinterChangeNotification(hPrinter, 0, 0, > p_NotifyOptions)) != INVALID_HANDLE_VALUE) > { > while(hwndNotify != INVALID_HANDLE_VALUE) > { > if(WaitForSingleObject(hwndNotify, 0) == WAIT_OBJECT_0) > { > > FindNextPrinterChangeNotification(hwndNotify, &dwChanged, > (LPVOID)p_NotifyOptions, (LPVOID*)&p_OutPut); > for (int i=0;i<p_OutPut->Count;i++) > { > if(p_OutPut->aData[i].Type == JOB_NOTIFY_TYPE) > { > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_USER_NAME) > { > MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) > ,_T("Status"),MB_OK); > } > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_PAGES_PRINTED) > { > TCHAR buff[25]; > _stprintf(buff,_T("PP = %d Job ID > %ld"),p_OutPut->aData[i].NotifyData.adwData[0], p_OutPut->aData[i].Id); > > MessageBox(NULL,buff ,_T("Status"),MB_OK); > } > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS) > { > if(p_OutPut->aData[i].NotifyData.adwData[0] & JOB_STATUS_PRINTED) > MessageBox(NULL,_T("Job Done") ,_T("Status"),MB_OK); > } > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS_STRING) > { > MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) > ,_T("Status"),MB_OK); > } > } > } > } > } > } > else > { > DWORD dwError = GetLastError(); > dwError += 0; > } > } > else > { > DWORD dwError = GetLastError(); > dwError += 0; > } > } A quick look trought it doesn't reveal any real problems. But i can imagine that your busy loop, due to WaitFor... (0), can cause a slow computer to miss some notifications. You should also not call a HANDLE hwndSomething - just hSomething will do. A print job with "always 0 pages" sounds easy enough to handle to me - just replace 0 with 1. :) I'll look into it in more detail with more time. If you are in a hurry i suggest a good way to fix problems -- record the whole routine. - Sten
From: Pankaj on 15 Dec 2006 04:39
Thanks Sten, for your reply... I modified the code as below: void StartNotifications(void) { HANDLE hPrinter = NULL; PRINTER_NOTIFY_OPTIONS * p_NotifyOptions = NULL; PRINTER_NOTIFY_OPTIONS_TYPE arr_NotifyOptionsType[2]; PWORD pPrinterFields; WORD arrJobFields[100]; HANDLE hwndNotify = NULL; DWORD dwChanged = 0; int i; FILE * pFile; TCHAR * pBuf; DWORD * adwData; TCHAR arrBuf[50]; pFile = _tfopen(_T("C:\\PrinterNotifications.txt"), _T("a+")); if(pFile) { MessageBox(NULL, _T("Opened"), _T("File Status"), MB_OK); } PRINTER_NOTIFY_INFO * p_OutPut = NULL; if(OpenPrinter(_T("\\\\NECHCLSTDC\\HP LaserJet 4345 mfp PCL 5e"), &hPrinter, NULL)) { i=0; arrJobFields[i++] = JOB_NOTIFY_FIELD_PRINTER_NAME; arrJobFields[i++] = JOB_NOTIFY_FIELD_MACHINE_NAME; arrJobFields[i++] = JOB_NOTIFY_FIELD_PORT_NAME; arrJobFields[i++] = JOB_NOTIFY_FIELD_USER_NAME; arrJobFields[i++] = JOB_NOTIFY_FIELD_NOTIFY_NAME; arrJobFields[i++] = JOB_NOTIFY_FIELD_DATATYPE; arrJobFields[i++] = JOB_NOTIFY_FIELD_PRINT_PROCESSOR; arrJobFields[i++] = JOB_NOTIFY_FIELD_PARAMETERS; arrJobFields[i++] = JOB_NOTIFY_FIELD_DRIVER_NAME; arrJobFields[i++] = JOB_NOTIFY_FIELD_STATUS_STRING; arrJobFields[i++] = JOB_NOTIFY_FIELD_DOCUMENT; arrJobFields[i++] = JOB_NOTIFY_FIELD_PRIORITY; arrJobFields[i++] = JOB_NOTIFY_FIELD_POSITION; arrJobFields[i++] = JOB_NOTIFY_FIELD_START_TIME; arrJobFields[i++] = JOB_NOTIFY_FIELD_UNTIL_TIME; arrJobFields[i++] = JOB_NOTIFY_FIELD_TIME; arrJobFields[i++] = JOB_NOTIFY_FIELD_TOTAL_PAGES; arrJobFields[i++] = JOB_NOTIFY_FIELD_PAGES_PRINTED; arrJobFields[i++] = JOB_NOTIFY_FIELD_TOTAL_BYTES; arrJobFields[i++] = JOB_NOTIFY_FIELD_BYTES_PRINTED; arr_NotifyOptionsType[0].Type = JOB_NOTIFY_TYPE ; arr_NotifyOptionsType[0].pFields = arrJobFields; arr_NotifyOptionsType[0].Count = 20; pPrinterFields = (PWORD)malloc(2 * sizeof(WORD)); pPrinterFields[0] = PRINTER_NOTIFY_FIELD_PRINTER_NAME; pPrinterFields[1] = PRINTER_NOTIFY_FIELD_AVERAGE_PPM; arr_NotifyOptionsType[1].Type = PRINTER_NOTIFY_TYPE ; arr_NotifyOptionsType[1].pFields = pPrinterFields; arr_NotifyOptionsType[1].Count = 2; p_NotifyOptions = new PRINTER_NOTIFY_OPTIONS; p_NotifyOptions->Count = 2; p_NotifyOptions->Version = 2; p_NotifyOptions->pTypes = arr_NotifyOptionsType; p_NotifyOptions->Flags = PRINTER_NOTIFY_OPTIONS_REFRESH; if((hwndNotify = FindFirstPrinterChangeNotification(hPrinter, PRINTER_CHANGE_ALL, 0, p_NotifyOptions)) != INVALID_HANDLE_VALUE) { while(hwndNotify != INVALID_HANDLE_VALUE) { if(WaitForSingleObject(hwndNotify, INFINITE) == WAIT_OBJECT_0) { FindNextPrinterChangeNotification(hwndNotify, &dwChanged, (LPVOID)p_NotifyOptions, (LPVOID*)&p_OutPut); for (int i=0;(i<p_OutPut->Count) && ;i++) { pBuf = (TCHAR*)(p_OutPut->aData[i].NotifyData.Data.pBuf); adwData = p_OutPut->aData[i].NotifyData.adwData; switch(p_OutPut->aData[i].Type) { case JOB_NOTIFY_TYPE: { //printf("\tã¸ã§ãéç¥(no.%d, id:%d)...", i, p_OutPut->aData[i].Id); switch(p_OutPut->aData[i].Field) { case JOB_NOTIFY_FIELD_PRINTER_NAME: _fputts(_T("Printer Name "), pFile); _fputts(pBuf, pFile); _fputtc(_T('\n'), pFile); break; case JOB_NOTIFY_FIELD_MACHINE_NAME: _fputts(_T("machine Name "), pFile); _fputts(pBuf, pFile); _fputtc(_T('\n'), pFile); break; case JOB_NOTIFY_FIELD_PORT_NAME: _fputts(_T("Port Name "), pFile); _fputts(pBuf, pFile); _fputtc(_T('\n'), pFile); break; case JOB_NOTIFY_FIELD_USER_NAME: _fputts(_T("User Name "), pFile); _fputts(pBuf, pFile); _fputtc(_T('\n'), pFile); break; case JOB_NOTIFY_FIELD_NOTIFY_NAME: _fputts(_T("Notify Name "), pFile); _fputts(pBuf, pFile); _fputtc(_T('\n'), pFile); break; case JOB_NOTIFY_FIELD_DATATYPE: _fputts(_T("Data Type "), pFile); _fputts(pBuf, pFile); _fputtc(_T('\n'), pFile); break; case JOB_NOTIFY_FIELD_PRINT_PROCESSOR: _fputts(_T("Print Processor "), pFile); _fputts(pBuf, pFile); _fputtc(_T('\n'), pFile); break; case JOB_NOTIFY_FIELD_PARAMETERS: _fputts(_T("Parameters"), pFile); _fputts(pBuf, pFile); _fputtc(_T('\n'), pFile); break; case JOB_NOTIFY_FIELD_DRIVER_NAME: _fputts(_T("Driver Name "), pFile); _fputts(pBuf, pFile); _fputtc(_T('\n'), pFile); break; case JOB_NOTIFY_FIELD_DEVMODE: // DEVMODE break; case JOB_NOTIFY_FIELD_STATUS: //printf("ã¸ã§ãã®ç¶æ (flag):"); if(adwData[0] & JOB_STATUS_PAUSED) { _fputts(_T("Status = "), pFile); _fputts( _T("Paused"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_ERROR) { _fputts(_T("Status = "), pFile); _fputts( _T("Error"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_DELETING) { _fputts(_T("Status = "), pFile); _fputts( _T("Deleting"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_SPOOLING) { _fputts(_T("Status = "), pFile); _fputts( _T("Spooling"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_PRINTING) { _fputts(_T("Status = "), pFile); _fputts( _T("Printing"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_OFFLINE) { _fputts(_T("Status = "), pFile); _fputts( _T("Offline"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_PAPEROUT) { _fputts(_T("Status = "), pFile); _fputts( _T("PaperOut"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_PRINTED) { _fputts(_T("Status = "), pFile); _fputts( _T("Printed"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_DELETED) { _fputts(_T("Status = "), pFile); _fputts( _T("Deleted"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_BLOCKED_DEVQ) { _fputts(_T("Status = "), pFile); _fputts( _T("Blocked DevQ"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_USER_INTERVENTION) { _fputts(_T("Status = "), pFile); _fputts( _T("User Intervention"), pFile); _fputtc(_T('\n'), pFile); } if(adwData[0] & JOB_STATUS_RESTART) { _fputts(_T("Status = "), pFile); _fputts( _T("Restart"), pFile); _fputtc(_T('\n'), pFile); } break; case JOB_NOTIFY_FIELD_STATUS_STRING: { _fputts(_T("Status String= "), pFile); _fputts( pBuf, pFile); _fputtc(_T('\n'), pFile); } break; case JOB_NOTIFY_FIELD_DOCUMENT: { _fputts(_T("Document = "), pFile); _fputts( pBuf, pFile); _fputtc(_T('\n'), pFile); } break; /*case JOB_NOTIFY_FIELD_PRIORITY: printf("åªå 度:%d\n", adwData[0]); break; case JOB_NOTIFY_FIELD_POSITION: printf("é çª:%d\n", adwData[0]); break;*/ case JOB_NOTIFY_FIELD_SUBMITTED: //SYSTEMTIME break; case JOB_NOTIFY_FIELD_START_TIME: memset(arrBuf, _T('\0'), 50); _stprintf(arrBuf,_T("Start Time: %d:%d\n"), adwData[0]/60, adwData[0]%60); _fputts(arrBuf, pFile); break; case JOB_NOTIFY_FIELD_UNTIL_TIME: memset(arrBuf, _T('\0'), 50); _stprintf(arrBuf,_T("Until Time: %d:%d\n"), adwData[0]/60, adwData[0]%60); _fputts(arrBuf, pFile); break; case JOB_NOTIFY_FIELD_TIME: memset(arrBuf, _T('\0'), 50); _stprintf(arrBuf,_T("Field Time: %d: %d\n"), adwData[0]/60, adwData[0]%60); _fputts(arrBuf, pFile); break; case JOB_NOTIFY_FIELD_TOTAL_PAGES: memset(arrBuf, _T('\0'), 50); _stprintf(arrBuf,_T("Total Pages: %d\n"), adwData[0]); _fputts(arrBuf, pFile); break; case JOB_NOTIFY_FIELD_PAGES_PRINTED: memset(arrBuf, _T('\0'), 50); _stprintf(arrBuf,_T("Pages Printed: %d\n"), adwData[0]); _fputts(arrBuf, pFile); break; case JOB_NOTIFY_FIELD_TOTAL_BYTES: memset(arrBuf, _T('\0'), 50); _stprintf(arrBuf,_T("Total Bytes: %d\n"), adwData[0]); _fputts(arrBuf, pFile); break; case JOB_NOTIFY_FIELD_BYTES_PRINTED: memset(arrBuf, _T('\0'), 50); _stprintf(arrBuf,_T("Bytes Printed: %d\n"), adwData[0]); _fputts(arrBuf, pFile); break; } break; } case PRINTER_NOTIFY_TYPE: { } break; } /*if(p_OutPut->aData[i].Type == JOB_NOTIFY_TYPE) { if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_USER_NAME) { MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) ,_T("User Name"),MB_OK); } if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_PAGES_PRINTED) { TCHAR buff[25]; _stprintf(buff,_T("PP = %d Job ID %ld"),p_OutPut->aData[i].NotifyData.adwData[0], p_OutPut->aData[i].Id); MessageBox(NULL,buff ,_T("Pages Printed"),MB_OK); } if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS) { if(p_OutPut->aData[i].NotifyData.adwData[0] & JOB_STATUS_PRINTED) MessageBox(NULL,_T("Job Done") ,_T("Status"),MB_OK); if(p_OutPut->aData[i].NotifyData.adwData[0] & JOB_STATUS_PRINTING) MessageBox(NULL,_T("Printing Started") ,_T("Status"),MB_OK); } if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS_STRING) { MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) ,_T("Status"),MB_OK); } }*/ } } } } else { DWORD dwError = GetLastError(); dwError += 0; } } else { DWORD dwError = GetLastError(); dwError += 0; } } I dumped the notification data in a file, and had the following observations: 1. I never received any Status notification for any type of Print job, i.e be it in EMF format or RAW format. In case of Status String, the notification was there, but the pBuf was empty. 2. In case of print job with EMF data type, the Total Pages and Printed pages data was received correctly. Same case for Total Byres and Printed Bytes. 3. In case of print job with RAW format, Total pages was received with correct values, but Printed Pages was always recieved with the value 0. Total Bytes was OK, but at the end of the print job, the Total Bytes and Printed Bytes were different, the latter being lesser then former. So, it doesn't help in determining that whether a print job is finished or not. Sten Westerback (MVP SDK) wrote: > "Pankaj" <pnkjadlakha(a)gmail.com> wrote in message > news:1165236408.717688.83540(a)16g2000cwy.googlegroups.com... > > hi all, > > > > I am trying to monitor the printer queue by using the Win32 Apis > > FindFirstPrinterChangeNotification and > > FindNextPrinterChangeNotification. > > But, I am not getting two information....one is the no. of pages > > printed and the job completion indication. > > For the first one I am setting the JOB_NOTIFY_FIELD_PAGES_PRINTED and > > for the second one JOB_NOTIFY_FIELD_STATUS is being used, in the > > required member of the PRINTER_NOTIFY_OPTIONS_TYPE structure. > > > > In the case of no. of pages printed, i get correct values, if the > > document is more than 1 page, but always get 0 when the document is > > having a single page. why is this so? > > And as regard the second thing the JOB_STATUS_PRINTED is never > > received. My code is as below: > > > > > > void StartNotifications(void) > > { > > HANDLE hPrinter = NULL; > > PRINTER_NOTIFY_OPTIONS * p_NotifyOptions = NULL; > > PRINTER_NOTIFY_OPTIONS_TYPE arr_NotifyOptionsType[2]; > > PWORD pJobFields, pPrinterFields; > > HANDLE hwndNotify = NULL; > > DWORD dwChanged = 0; > > > > PRINTER_NOTIFY_INFO * p_OutPut = NULL; > > > > if(OpenPrinter(_T("\\\\NECHCLSTDC\\HP LaserJet 4345 mfp PCL 5e"), > > &hPrinter, NULL)) > > { > > pJobFields = (PWORD)malloc(5 * sizeof(WORD)); > > pJobFields[0] = JOB_NOTIFY_FIELD_USER_NAME; > > pJobFields[1] = JOB_NOTIFY_FIELD_PAGES_PRINTED; > > pJobFields[2] = JOB_NOTIFY_FIELD_TOTAL_BYTES; > > pJobFields[3] = JOB_NOTIFY_FIELD_STATUS; > > pJobFields[4] = JOB_NOTIFY_FIELD_STATUS_STRING; > > > > arr_NotifyOptionsType[0].Type = JOB_NOTIFY_TYPE ; > > arr_NotifyOptionsType[0].pFields = pJobFields; > > arr_NotifyOptionsType[0].Count = 5; > > > > pPrinterFields = (PWORD)malloc(2 * sizeof(WORD)); > > pPrinterFields[0] = PRINTER_NOTIFY_FIELD_PRINTER_NAME; > > pPrinterFields[1] = PRINTER_NOTIFY_FIELD_AVERAGE_PPM; > > > > arr_NotifyOptionsType[1].Type = PRINTER_NOTIFY_TYPE ; > > arr_NotifyOptionsType[1].pFields = pPrinterFields; > > arr_NotifyOptionsType[1].Count = 2; > > > > > > > > p_NotifyOptions = new PRINTER_NOTIFY_OPTIONS; > > > > p_NotifyOptions->Count = 2; > > p_NotifyOptions->Version = 2; > > p_NotifyOptions->pTypes = arr_NotifyOptionsType; > > p_NotifyOptions->Flags = PRINTER_NOTIFY_OPTIONS_REFRESH; > > > > if((hwndNotify = FindFirstPrinterChangeNotification(hPrinter, 0, 0, > > p_NotifyOptions)) != INVALID_HANDLE_VALUE) > > { > > while(hwndNotify != INVALID_HANDLE_VALUE) > > { > > if(WaitForSingleObject(hwndNotify, 0) == WAIT_OBJECT_0) > > { > > > > FindNextPrinterChangeNotification(hwndNotify, &dwChanged, > > (LPVOID)p_NotifyOptions, (LPVOID*)&p_OutPut); > > for (int i=0;i<p_OutPut->Count;i++) > > { > > if(p_OutPut->aData[i].Type == JOB_NOTIFY_TYPE) > > { > > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_USER_NAME) > > { > > MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) > > ,_T("Status"),MB_OK); > > } > > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_PAGES_PRINTED) > > { > > TCHAR buff[25]; > > _stprintf(buff,_T("PP = %d Job ID > > %ld"),p_OutPut->aData[i].NotifyData.adwData[0], p_OutPut->aData[i].Id); > > > > MessageBox(NULL,buff ,_T("Status"),MB_OK); > > } > > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS) > > { > > if(p_OutPut->aData[i].NotifyData.adwData[0] & JOB_STATUS_PRINTED) > > MessageBox(NULL,_T("Job Done") ,_T("Status"),MB_OK); > > } > > if(p_OutPut->aData[i].Field == JOB_NOTIFY_FIELD_STATUS_STRING) > > { > > MessageBox(NULL,(LPTSTR)(p_OutPut->aData[i].NotifyData.Data.pBuf) > > ,_T("Status"),MB_OK); > > } > > } > > } > > } > > } > > } > > else > > { > > DWORD dwError = GetLastError(); > > dwError += 0; > > } > > } > > else > > { > > DWORD dwError = GetLastError(); > > dwError += 0; > > } > > } > > > A quick look trought it doesn't reveal any real problems. But i can imagine > that your busy loop, due to WaitFor... (0), can cause a slow computer to > miss some notifications. > You should also not call a HANDLE hwndSomething - just hSomething will do. > A print job with "always 0 pages" sounds easy enough to handle to me - just > replace 0 with 1. :) > I'll look into it in more detail with more time. > If you are in a hurry i suggest a good way to fix problems -- record the > whole routine. > > - Sten |