widget/windows/InputDeviceUtils.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sts=2 sw=2 et cin: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_widget_InputDeviceUtils_h__
   8 #define mozilla_widget_InputDeviceUtils_h__
   9
  10 #include <windows.h>
  11
  12 namespace mozilla {
  13 namespace widget {
  14
  15 class InputDeviceUtils {
  16  public:
  17   static HDEVNOTIFY RegisterNotification(HWND aHwnd);
  18   static void UnregisterNotification(HDEVNOTIFY aHandle);
  19
  20   // Returns the number of mouse type devices connected to this system.
  21   static DWORD CountMouseDevices();
  22 };
  23
  24 }  // namespace widget
  25 }  // namespace mozilla
  26 #endif  // mozilla_widget_InputDeviceUtils_h__