337 lines
7.7 KiB
C++
337 lines
7.7 KiB
C++
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//---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1996
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//
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// File: cenumjob.cxx
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//
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// Contents: NetWare 3.12 JobCollection Enumeration Code
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//
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// CNWCOMPATJobCollectionEnum::Create
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// CNWCOMPATJobCollectionEnum::GetJobObject
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// CNWCOMPATJobCollectionEnum::EnumJobMembers
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// CNWCOMPATJobCollectionEnum::Next
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//
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// History: 08-May-96 t-ptam (Patrick Tam) Created.
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//
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//----------------------------------------------------------------------------
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#include "NWCOMPAT.hxx"
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#pragma hdrstop
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//+---------------------------------------------------------------------------
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//
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// Function: CNWCOMPATEnumVariant::Create
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//
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// Synopsis:
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//
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// Arguments: [pCollection]
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// [ppEnumVariant]
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//
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// Returns: HRESULT
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//
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// Modifies:
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//
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// History: 08-Mag-96 t-ptam (Patrick Tam) Created.
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//
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//----------------------------------------------------------------------------
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HRESULT
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CNWCOMPATJobCollectionEnum::Create(
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CNWCOMPATJobCollectionEnum FAR* FAR* ppEnumVariant,
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BSTR PrinterName
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)
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{
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HRESULT hr = S_OK;
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CNWCOMPATJobCollectionEnum FAR* pEnumVariant = NULL;
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POBJECTINFO pPrinterObjectInfo = NULL;
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WCHAR szUncPrinterName[MAX_PATH];
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//
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// Validate input parameters.
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//
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if (!(ppEnumVariant) || !(PrinterName)) {
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RRETURN(E_ADS_BAD_PARAMETER);
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}
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*ppEnumVariant = NULL;
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//
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// Allocate a Collection Enumerator object.
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//
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pEnumVariant = new CNWCOMPATJobCollectionEnum();
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if (!pEnumVariant) {
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hr = E_OUTOFMEMORY;
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BAIL_ON_FAILURE(hr);
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}
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hr = ADsAllocString(PrinterName, &pEnumVariant->_PrinterName);
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BAIL_ON_FAILURE(hr);
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//
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// Make Unc Name to open a printer.
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//
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hr = BuildObjectInfo(
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PrinterName,
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&pPrinterObjectInfo
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);
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BAIL_ON_FAILURE(hr);
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ADsAssert(pPrinterObjectInfo->NumComponents == 2);
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wcscpy(PrinterName,
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pPrinterObjectInfo->ComponentArray[0]);
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MakeUncName (PrinterName,
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szUncPrinterName);
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wcscat(szUncPrinterName,TEXT("\\"));
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wcscat(szUncPrinterName, pPrinterObjectInfo->ComponentArray[1]);
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hr = NWApiOpenPrinter(
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szUncPrinterName,
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&pEnumVariant->_hPrinter,
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PRINTER_ACCESS_USE
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);
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BAIL_ON_FAILURE(hr);
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//
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// Return.
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//
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*ppEnumVariant = pEnumVariant;
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if(pPrinterObjectInfo){
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FreeObjectInfo(pPrinterObjectInfo);
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}
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RRETURN(hr);
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error:
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if(pPrinterObjectInfo){
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FreeObjectInfo(pPrinterObjectInfo);
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}
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delete pEnumVariant;
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RRETURN_EXP_IF_ERR(hr);
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}
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//----------------------------------------------------------------------------
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//
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// Function: CNWCOMPATJobCollectionEnum::CNWCOMPATJobCollectionEnum
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//
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// Synopsis:
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//
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//----------------------------------------------------------------------------
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CNWCOMPATJobCollectionEnum::CNWCOMPATJobCollectionEnum():
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_PrinterName(NULL),
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_hPrinter(NULL),
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_pBuffer(NULL),
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_dwReturned(0),
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_dwCurrentObject(0)
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{
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}
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//----------------------------------------------------------------------------
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//
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// Function: CNWCOMPATJobCollectionEnum::~CNWCOMPATJobCollectionEnum
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//
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// Synopsis:
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//
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//----------------------------------------------------------------------------
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CNWCOMPATJobCollectionEnum::~CNWCOMPATJobCollectionEnum()
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{
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if (_PrinterName) {
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SysFreeString(_PrinterName);
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}
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if (_hPrinter) {
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NWApiClosePrinter(_hPrinter);
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}
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if (_pBuffer) {
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FreeADsMem(_pBuffer);
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}
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}
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//----------------------------------------------------------------------------
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//
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// Function: CNWCOMPATJobCollectionEnum::EnumJobMembers
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//
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// Synopsis:
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//
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//----------------------------------------------------------------------------
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HRESULT
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CNWCOMPATJobCollectionEnum::EnumJobMembers(
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ULONG cElements,
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VARIANT FAR* pvar,
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ULONG FAR* pcElementFetched
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)
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{
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HRESULT hr = S_OK;
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IDispatch *pDispatch = NULL;
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DWORD i = 0;
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while (i < cElements) {
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hr = GetJobObject(&pDispatch);
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if (hr == S_FALSE) {
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break;
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}
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VariantInit(&pvar[i]);
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pvar[i].vt = VT_DISPATCH;
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pvar[i].pdispVal = pDispatch;
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(*pcElementFetched)++;
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i++;
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}
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RRETURN(hr);
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}
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//----------------------------------------------------------------------------
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//
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// Function: CNWCOMPATJobCollectionEnum::GetJobObject
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//
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// Synopsis:
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//
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//----------------------------------------------------------------------------
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HRESULT
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CNWCOMPATJobCollectionEnum::GetJobObject(
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IDispatch ** ppDispatch
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)
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{
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DWORD dwBuf = 0;
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DWORD dwJobInQueue = 0;
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HRESULT hr = S_OK;
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LPBYTE lpbPrinterInfo = NULL;
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LPJOB_INFO_1 lpJobInfo = NULL;
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//
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// Fill _pBuffer with JobID. Win32 API returns all jobs in one shot.
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//
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if (!_pBuffer) {
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//
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// Get the number of print jobs that have been queued for the printer.
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//
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hr = NWApiGetPrinter(
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_hPrinter,
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WIN32_API_LEVEL_2,
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&lpbPrinterInfo
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);
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BAIL_ON_FAILURE(hr);
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dwJobInQueue = ((LPPRINTER_INFO_2)lpbPrinterInfo)->cJobs;
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//
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// Enumerate for all the jobs.
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//
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hr = NWApiEnumJobs(
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_hPrinter,
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FIRST_PRINTJOB,
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dwJobInQueue,
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WIN32_API_LEVEL_1,
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&_pBuffer,
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&dwBuf,
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&_dwReturned
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);
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BAIL_ON_FAILURE(hr);
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}
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//
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// Traverse the buffer and return a PrintJob object.
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//
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if (_dwCurrentObject < _dwReturned) {
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//
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// Go to the next structure in the buffer.
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//
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lpJobInfo = (LPJOB_INFO_1)_pBuffer + _dwCurrentObject;
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//
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// Create a print job object.
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//
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hr = CNWCOMPATPrintJob::CreatePrintJob(
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_PrinterName,
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lpJobInfo->JobId,
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ADS_OBJECT_BOUND,
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IID_IDispatch,
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(void **)ppDispatch
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);
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BAIL_ON_FAILURE(hr);
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//
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// Return.
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//
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_dwCurrentObject++;
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if(lpbPrinterInfo){
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FreeADsMem(lpbPrinterInfo);
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}
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RRETURN(S_OK);
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}
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error:
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if(lpbPrinterInfo){
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FreeADsMem(lpbPrinterInfo);
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}
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*ppDispatch = NULL;
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RRETURN(S_FALSE);
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}
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//+---------------------------------------------------------------------------
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//
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// Function: CNWCOMPATJobCollectionEnum::Next
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//
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// Synopsis: Returns cElements number of requested NetOle objects in the
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// array supplied in pvar.
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//
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// Arguments: [cElements] -- The number of elements requested by client
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// [pvar] -- ptr to array of VARIANTs to for return objects
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// [pcElementFetched] -- if non-NULL, then number of elements
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// -- actually returned is placed here
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//
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// Returns: HRESULT -- S_OK if number of elements requested are returned
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// -- S_FALSE if number of elements is < requested
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//
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// Modifies:
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//
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// History: 11-3-95 krishnag Created.
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP
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CNWCOMPATJobCollectionEnum::Next(
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ULONG cElements,
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VARIANT FAR* pvar,
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ULONG FAR* pcElementFetched
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)
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{
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ULONG cElementFetched = 0;
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HRESULT hr = S_OK;
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hr = EnumJobMembers(
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cElements,
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pvar,
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&cElementFetched
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);
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if (pcElementFetched) {
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*pcElementFetched = cElementFetched;
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}
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RRETURN_EXP_IF_ERR(hr);
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}
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