printing_info_win.h revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef PRINTING_BACKEND_PRINTING_INFO_WIN_H_
6#define PRINTING_BACKEND_PRINTING_INFO_WIN_H_
7
8#include <objidl.h>
9#include <winspool.h>
10
11#include "base/memory/scoped_ptr.h"
12#include "printing/printing_export.h"
13
14namespace printing {
15
16namespace internal {
17
18PRINTING_EXPORT uint8* GetDriverInfo(HANDLE printer, int level);
19PRINTING_EXPORT uint8* GetPrinterInfo(HANDLE printer, int level);
20
21// This class is designed to work with PRINTER_INFO_X structures
22// and calls GetPrinter internally with correctly allocated buffer.
23template <typename PrinterInfoType, int level>
24class PrinterInfo {
25 public:
26  bool Init(HANDLE printer) {
27    buffer_.reset(GetPrinterInfo(printer, level));
28    return buffer_;
29  }
30
31  const PrinterInfoType* get() const {
32    return reinterpret_cast<const PrinterInfoType*>(buffer_.get());
33  }
34
35 private:
36  scoped_ptr<uint8[]> buffer_;
37};
38
39// This class is designed to work with DRIVER_INFO_X structures
40// and calls GetDriverInfo internally with correctly allocated buffer.
41template <typename DriverInfoType, int level>
42class DriverInfo {
43 public:
44  bool Init(HANDLE printer) {
45    buffer_.reset(GetDriverInfo(printer, level));
46    return buffer_;
47  }
48
49  const DriverInfoType* get() const {
50    return reinterpret_cast<const DriverInfoType*>(buffer_.get());
51  }
52
53 private:
54  scoped_ptr<uint8[]> buffer_;
55};
56
57}  // namespace internal
58
59typedef internal::PrinterInfo<PRINTER_INFO_2, 2> PrinterInfo2;
60typedef internal::PrinterInfo<PRINTER_INFO_5, 5> PrinterInfo5;
61
62typedef internal::DriverInfo<DRIVER_INFO_6, 6> DriverInfo6;
63
64}  // namespace printing
65
66#endif  // PRINTING_BACKEND_PRINTING_INFO_WIN_H_
67