cloud_print/virtual_driver/win/virtual_driver_helpers.cc

   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 #include "cloud_print/virtual_driver/win/virtual_driver_helpers.h"
   6
   7 #include <windows.h>
   8 #include <winspool.h>
   9
  10 #include "base/files/file_util.h"
  11 #include "base/logging.h"
  12 #include "base/strings/string16.h"
  13 #include "base/win/windows_version.h"
  14 #include "cloud_print/common/win/cloud_print_utils.h"
  15
  16 namespace cloud_print {
  17
  18 const size_t kMaxMessageLen = 100;
  19
  20 void DisplayWindowsMessage(HWND hwnd, HRESULT hr,
  21                            const base::string16 &caption) {
  22   ::MessageBox(hwnd, GetErrorMessage(hr).c_str(), caption.c_str(), MB_OK);
  23 }
  24
  25 base::string16 GetPortMonitorDllName() {
  26   if (IsSystem64Bit()) {
  27     return base::string16(L"gcp_portmon64.dll");
  28   } else {
  29     return base::string16(L"gcp_portmon.dll");
  30   }
  31 }
  32
  33 HRESULT GetPrinterDriverDir(base::FilePath* path) {
  34   BYTE driver_dir_buffer[MAX_PATH * sizeof(wchar_t)];
  35   DWORD needed = 0;
  36   if (!GetPrinterDriverDirectory(NULL,
  37                                  NULL,
  38                                  1,
  39                                  driver_dir_buffer,
  40                                  MAX_PATH * sizeof(wchar_t),
  41                                  &needed)) {
  42     // We could try to allocate a larger buffer if needed > MAX_PATH
  43     // but that really shouldn't happen.
  44     return cloud_print::GetLastHResult();
  45   }
  46   *path = base::FilePath(reinterpret_cast<wchar_t*>(driver_dir_buffer));
  47
  48   // The XPS driver is a "Level 3" driver
  49   *path = path->Append(L"3");
  50   return S_OK;
  51 }
  52
  53 bool IsSystem64Bit() {
  54   base::win::OSInfo::WindowsArchitecture arch =
  55       base::win::OSInfo::GetInstance()->architecture();
  56   return (arch == base::win::OSInfo::X64_ARCHITECTURE) ||
  57          (arch == base::win::OSInfo::IA64_ARCHITECTURE);
  58 }
  59
  60 }
  61