15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 52a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "ui/base/touch/touch_device.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/win/windows_version.h" 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ui { 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool IsTouchDevicePresent() { 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int value = GetSystemMetrics(SM_DIGITIZER); 13ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return (value & NID_READY) && 14ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch ((value & NID_INTEGRATED_TOUCH) || (value & NID_EXTERNAL_TOUCH)); 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 171e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)int MaxTouchPoints() { 181320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci if (!IsTouchDevicePresent()) 191320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci return 0; 201320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 211e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) return GetSystemMetrics(SM_MAXIMUMTOUCHES); 221e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)} 231e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ui 25