530 lines
10 KiB
C++
530 lines
10 KiB
C++
//---------------------------------------------------------------------------
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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: printhlp.cxx
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//
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// Contents: Helper functions for printer object.
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//
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// History: 08-May-96 t-ptam (PatrickT) migrated
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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: WinNTEnumJobs
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//
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// Synopsis:
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//
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//----------------------------------------------------------------------------
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BOOL
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WinNTEnumJobs(
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HANDLE hPrinter,
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DWORD dwFirstJob,
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DWORD dwNoJobs,
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DWORD dwLevel,
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LPBYTE *lplpbJobs,
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DWORD *pcbBuf,
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LPDWORD lpdwReturned
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)
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{
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BOOL fStatus = FALSE;
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DWORD dwNeeded = 0;
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DWORD dwError = 0;
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//
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// Enumerate Jobs using Win32 API.
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//
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fStatus = EnumJobs(
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hPrinter,
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dwFirstJob,
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dwNoJobs,
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dwLevel,
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*lplpbJobs,
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*pcbBuf,
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&dwNeeded,
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lpdwReturned
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);
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//
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// Enumerate for Jobs again with a bigger buffer if a bigger one is needed
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// for the result.
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//
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if (!fStatus) {
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if ((dwError = GetLastError()) == ERROR_INSUFFICIENT_BUFFER) {
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if (*lplpbJobs) {
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FreeADsMem( *lplpbJobs );
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}
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*lplpbJobs = (LPBYTE)AllocADsMem(dwNeeded);
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if (!*lplpbJobs) {
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*pcbBuf = 0;
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return(FALSE);
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}
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*pcbBuf = dwNeeded;
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fStatus = EnumJobs(
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hPrinter,
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dwFirstJob,
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dwNoJobs,
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dwLevel,
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*lplpbJobs,
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*pcbBuf,
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&dwNeeded,
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lpdwReturned
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);
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if (!fStatus) {
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return(FALSE);
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}
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else {
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return(TRUE);
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}
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}
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else {
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return(FALSE);
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}
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}
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else {
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return(TRUE);
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}
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}
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//----------------------------------------------------------------------------
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//
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// Function: WinNTEnumPrinters
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//
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// Synopsis:
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//
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//----------------------------------------------------------------------------
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BOOL
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WinNTEnumPrinters(
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DWORD dwType,
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LPTSTR lpszName,
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DWORD dwLevel,
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LPBYTE *lplpbPrinters,
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LPDWORD lpdwReturned
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)
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{
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BOOL fStatus = FALSE;
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DWORD dwPassed = 1024;
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DWORD dwNeeded = 0;
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DWORD dwError = 0;
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LPBYTE pMem = NULL;
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//
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// Allocate memory for return buffer.
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//
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pMem = (LPBYTE)AllocADsMem(dwPassed);
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if (!pMem) {
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goto error;
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}
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//
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// Enumerate Printers using Win32 API.
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//
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fStatus = EnumPrinters(
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dwType,
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lpszName,
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dwLevel,
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pMem,
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dwPassed,
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&dwNeeded,
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lpdwReturned
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);
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//
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// Enumerate for Printers again with a bigger buffer if a bigger one is
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// needed for the result.
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//
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if (!fStatus) {
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if ((dwError = GetLastError()) != ERROR_INSUFFICIENT_BUFFER) {
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goto error;
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}
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if (pMem) {
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FreeADsMem(pMem);
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}
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pMem = (LPBYTE)AllocADsMem(
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dwNeeded
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);
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if (!pMem) {
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goto error;
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}
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dwPassed = dwNeeded;
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fStatus = EnumPrinters(
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dwType,
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lpszName,
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dwLevel,
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pMem,
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dwPassed,
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&dwNeeded,
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lpdwReturned
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);
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if (!fStatus) {
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goto error;
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}
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}
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//
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// Return.
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//
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*lplpbPrinters = pMem;
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return(TRUE);
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error:
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if (pMem) {
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FreeADsMem(pMem);
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}
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return(FALSE);
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}
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//----------------------------------------------------------------------------
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//
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// Function: WinNTGetPrinter
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//
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// Synopsis:
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//
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//----------------------------------------------------------------------------
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BOOL
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WinNTGetPrinter(
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HANDLE hPrinter,
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DWORD dwLevel,
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LPBYTE *lplpbPrinters
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)
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{
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BOOL fStatus = FALSE;
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DWORD dwPassed = 1024;
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DWORD dwNeeded = 0;
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DWORD dwError = 0;
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LPBYTE pMem = NULL;
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//
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// Allocate memory for return buffer.
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//
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pMem = (LPBYTE)AllocADsMem(dwPassed);
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if (!pMem) {
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goto error;
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}
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//
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// Get printer's information.
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//
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fStatus = GetPrinter(
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hPrinter,
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dwLevel,
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pMem,
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dwPassed,
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&dwNeeded
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);
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//
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// Get printer's information again with a bigger buffer if a bigger buffer
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// is needed for the result.
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//
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if (!fStatus) {
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if ((dwError = GetLastError()) != ERROR_INSUFFICIENT_BUFFER) {
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goto error;
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}
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if (pMem) {
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FreeADsMem(pMem);
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}
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pMem = (LPBYTE)AllocADsMem(
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dwNeeded
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);
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if (!pMem) {
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goto error;
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}
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dwPassed = dwNeeded;
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fStatus = GetPrinter(
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hPrinter,
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dwLevel,
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pMem,
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dwPassed,
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&dwNeeded
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);
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if (!fStatus) {
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goto error;
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}
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}
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//
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// Return.
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//
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*lplpbPrinters = pMem;
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return(TRUE);
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error:
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if (pMem) {
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FreeADsMem(pMem);
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}
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return(FALSE);
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}
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//----------------------------------------------------------------------------
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//
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// Function: GetPrinterInfo
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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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GetPrinterInfo(
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THIS_ LPPRINTER_INFO_2 *lplpPrinterInfo2,
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BSTR bstrPrinterName
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)
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{
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//
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// Do a GetPrinter call to bstrPrinterName
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//
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BOOL fStatus = FALSE;
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PRINTER_DEFAULTS PrinterDefaults = {0, 0, PRINTER_ACCESS_USE |
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READ_CONTROL};
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DWORD LastError = 0;
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HANDLE hPrinter = NULL;
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LPBYTE pMem = NULL;
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HRESULT hr = S_OK;
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ADsAssert(bstrPrinterName);
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//
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// Open a printer handle.
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//
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fStatus = OpenPrinter(
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(LPTSTR)bstrPrinterName,
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&hPrinter,
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&PrinterDefaults
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);
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//
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// If access is denied, do it again with a different access right.
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//
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if (!fStatus) {
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LastError = GetLastError();
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switch (LastError) {
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case ERROR_ACCESS_DENIED:
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{
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PRINTER_DEFAULTS PrinterDefaults = {0, 0, PRINTER_ACCESS_USE};
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fStatus = OpenPrinter(
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(LPTSTR)bstrPrinterName,
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&hPrinter,
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&PrinterDefaults
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);
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if (fStatus) {
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break;
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}
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}
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default:
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RRETURN(HRESULT_FROM_WIN32(GetLastError()));
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}
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}
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//
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// Get printer's info.
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//
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fStatus = WinNTGetPrinter(
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hPrinter,
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2,
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(LPBYTE *)&pMem
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);
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if (!fStatus) {
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hr = HRESULT_FROM_WIN32(GetLastError());
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goto cleanup;
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}
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//
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// Return.
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//
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*lplpPrinterInfo2 = (LPPRINTER_INFO_2)pMem;
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cleanup:
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if(hPrinter)
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fStatus = ClosePrinter(hPrinter);
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RRETURN(hr);
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}
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//----------------------------------------------------------------------------
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//
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// Function: Set
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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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Set(
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LPPRINTER_INFO_2 lpPrinterInfo2,
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LPTSTR pszPrinterName
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)
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{
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BOOL fStatus = FALSE;
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PRINTER_DEFAULTS PrinterDefaults = {0, 0, PRINTER_ALL_ACCESS};
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HANDLE hPrinter = NULL;
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HRESULT hr;
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ADsAssert(pszPrinterName);
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//
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// Open a printer handle.
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//
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fStatus = OpenPrinter(
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pszPrinterName,
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&hPrinter,
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&PrinterDefaults
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);
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if (!fStatus) {
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goto error;
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}
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//
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// Set printer's data.
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//
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fStatus = SetPrinter(
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hPrinter,
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2,
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(LPBYTE)lpPrinterInfo2,
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0
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);
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if (!fStatus) {
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goto error;
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}
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//
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// Return.
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//
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fStatus = ClosePrinter(hPrinter);
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RRETURN(S_OK);
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error:
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hr = HRESULT_FROM_WIN32(GetLastError());
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if(hPrinter)
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fStatus = ClosePrinter(hPrinter);
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RRETURN(hr);
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}
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//----------------------------------------------------------------------------
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//
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// Function: WinNTDeletePrinter
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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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WinNTDeletePrinter(
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POBJECTINFO pObjectInfo
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)
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{
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WCHAR szUncServerName[MAX_PATH];
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WCHAR szUncPrinterName[MAX_PATH];
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HANDLE hPrinter = NULL;
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PRINTER_DEFAULTS PrinterDefaults = {0, 0, PRINTER_ACCESS_ADMINISTER};
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BOOL fStatus = FALSE;
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HRESULT hr = S_OK;
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//
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// Make Unc Name for OpenPrinter.
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//
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MakeUncName(pObjectInfo->ComponentArray[1],
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szUncServerName
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);
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wcscpy(szUncPrinterName, szUncServerName);
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wcscat(szUncPrinterName, L"\\");
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wcscat(szUncPrinterName, (LPTSTR)pObjectInfo->ComponentArray[2]);
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//
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// Open a printer handle.
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//
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fStatus = OpenPrinter(
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(LPTSTR)szUncPrinterName,
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&hPrinter,
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&PrinterDefaults
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);
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if (!fStatus) {
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goto error;
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}
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//
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// Delete the given printer.
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//
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fStatus = DeletePrinter(hPrinter);
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//
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// Return.
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//
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if (!fStatus) {
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hr = GetLastError();
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fStatus = ClosePrinter(hPrinter);
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goto error;
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}
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error:
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RRETURN(hr);
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}
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