src/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/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, const string16 &caption) {
  21   ::MessageBox(hwnd, GetErrorMessage(hr).c_str(), caption.c_str(), MB_OK);
  22 }
  23
  24 string16 GetPortMonitorDllName() {
  25   if (IsSystem64Bit()) {
  26     return string16(L"gcp_portmon64.dll");
  27   } else {
  28     return string16(L"gcp_portmon.dll");
  29   }
  30 }
  31
  32 HRESULT GetPrinterDriverDir(base::FilePath* path) {
  33   BYTE driver_dir_buffer[MAX_PATH * sizeof(wchar_t)];
  34   DWORD needed = 0;
  35   if (!GetPrinterDriverDirectory(NULL,
  36                                  NULL,
  37                                  1,
  38                                  driver_dir_buffer,
  39                                  MAX_PATH * sizeof(wchar_t),
  40                                  &needed)) {
  41     // We could try to allocate a larger buffer if needed > MAX_PATH
  42     // but that really shouldn't happen.
  43     return cloud_print::GetLastHResult();
  44   }
  45   *path = base::FilePath(reinterpret_cast<wchar_t*>(driver_dir_buffer));
  46
  47   // The XPS driver is a "Level 3" driver
  48   *path = path->Append(L"3");
  49   return S_OK;
  50 }
  51
  52 bool IsSystem64Bit() {
  53   base::win::OSInfo::WindowsArchitecture arch =
  54       base::win::OSInfo::GetInstance()->architecture();
  55   return (arch == base::win::OSInfo::X64_ARCHITECTURE) ||
  56          (arch == base::win::OSInfo::IA64_ARCHITECTURE);
  57 }
  58
  59 }
  60