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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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