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1 // Copyright 2015 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 #ifndef DEVICE_CORE_DEVICE_INFO_QUERY_WIN_H_ | |
6 #define DEVICE_CORE_DEVICE_INFO_QUERY_WIN_H_ | |
7 | |
8 #include <windows.h> | |
9 #include <setupapi.h> | |
10 | |
11 #include <string> | |
12 | |
13 #include "base/macros.h" | |
14 #include "device/core/device_core_export.h" | |
15 | |
16 namespace device { | |
17 | |
18 // Wraps HDEVINFO and SP_DEVINFO_DATA into a class that can automatically | |
19 // release them. Provides interfaces that can add a device using its | |
20 // device path, get device info and get device string property. | |
21 class DEVICE_CORE_EXPORT DeviceInfoQueryWin { | |
22 public: | |
23 DeviceInfoQueryWin(); | |
24 ~DeviceInfoQueryWin(); | |
25 | |
26 // Add a device to |device_info_list_| using its |device_path| so that | |
27 // its device info can be retrieved. | |
28 bool AddDevice(const char* device_path); | |
29 // Get the device info and store it into |device_info_data_|, this function | |
30 // should be called at most once. | |
31 bool GetDeviceInfo(); | |
32 // Get device string property and store it into |property_buffer|. | |
33 bool GetDeviceStringProperty(DWORD property, std::string* property_buffer); | |
34 | |
35 bool device_info_list_valid() { | |
36 return device_info_list_ != INVALID_HANDLE_VALUE; | |
37 } | |
38 | |
39 private: | |
40 HDEVINFO device_info_list_ = INVALID_HANDLE_VALUE; | |
41 // When device_info_data_.cbSize != 0, |device_info_data_| is valid. | |
42 SP_DEVINFO_DATA device_info_data_; | |
43 | |
44 DISALLOW_COPY_AND_ASSIGN(DeviceInfoQueryWin); | |
45 }; | |
46 | |
47 } // namespace device | |
48 | |
49 #endif // DEVICE_CORE_DEVICE_INFO_QUERY_WIN_H_ | |
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