widget/windows/nsUserIdleServiceWin.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:expandtab:shiftwidth=4:tabstop=4:
   3  */
   4 /* This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   7
   8 #include "nsUserIdleServiceWin.h"
   9 #include <windows.h>
  10
  11 bool nsUserIdleServiceWin::PollIdleTime(uint32_t* aIdleTime) {
  12   LASTINPUTINFO inputInfo;
  13   inputInfo.cbSize = sizeof(inputInfo);
  14   if (!::GetLastInputInfo(&inputInfo)) return false;
  15
  16   *aIdleTime =
  17       SAFE_COMPARE_EVEN_WITH_WRAPPING(GetTickCount(), inputInfo.dwTime);
  18
  19   return true;
  20 }