windows-nt/Source/XPSP1/NT/printscan/fax/util/printers.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1999 Microsoft Corporation
Module Name:
printers.c
Abstract:
This file implements printer functions for fax.
Author:
Steven Kehrli (steveke) 18-Aug-1999
Environment:
User Mode
--*/
#include <windows.h>
#include <winspool.h>
#include <tchar.h>
#include "faxutil.h"
PVOID
MyEnumPrinters(
LPTSTR pServerName,
DWORD level,
PDWORD pcPrinters,
DWORD dwFlags
)
/*++
Routine Description:
Wrapper function for spooler API EnumPrinters
Arguments:
pServerName - Specifies the name of the print server
level - Level of PRINTER_INFO_x structure
pcPrinters - Returns the number of printers enumerated
dwFlags - Flag bits passed to EnumPrinters
Return Value:
Pointer to an array of PRINTER_INFO_x structures
NULL if there is an error
--*/
{
PBYTE pPrinterInfo = NULL;
DWORD cb;
if (! EnumPrinters(dwFlags, pServerName, level, NULL, 0, &cb, pcPrinters) &&
GetLastError() == ERROR_INSUFFICIENT_BUFFER &&
(pPrinterInfo = MemAlloc(cb)) &&
EnumPrinters(dwFlags, pServerName, level, pPrinterInfo, cb, &cb, pcPrinters))
{
return pPrinterInfo;
}
DebugPrint(( TEXT("EnumPrinters failed: %d\n"), GetLastError()));
MemFree(pPrinterInfo);
return NULL;
}