Source code of Windows XP (NT5)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

357 lines
8.2 KiB

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