Home | History | Annotate | Download | only in touch 
      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 "ui/base/touch/touch_device.h"
      6 #include "base/win/windows_version.h"
      7 #include <windows.h>
      8 
      9 namespace ui {
     10 
     11 bool IsTouchDevicePresent() {
     12   int value = GetSystemMetrics(SM_DIGITIZER);
     13   return (value & NID_READY) &&
     14       ((value & NID_INTEGRATED_TOUCH) || (value & NID_EXTERNAL_TOUCH));
     15 }
     16 
     17 int MaxTouchPoints() {
     18   return GetSystemMetrics(SM_MAXIMUMTOUCHES);
     19 }
     20 
     21 }  // namespace ui
     22