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- // Copyright 2015 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef DEVICE_BASE_DEVICE_INFO_QUERY_WIN_H_
- #define DEVICE_BASE_DEVICE_INFO_QUERY_WIN_H_
- #include <windows.h>
- #include <setupapi.h>
- #include <string>
- #include "device/base/device_base_export.h"
- namespace device {
- // Wraps HDEVINFO and SP_DEVINFO_DATA into a class that can automatically
- // release them. Provides interfaces that can add a device using its
- // device path, get device info and get device string property.
- class DEVICE_BASE_EXPORT DeviceInfoQueryWin {
- public:
- DeviceInfoQueryWin();
- DeviceInfoQueryWin(const DeviceInfoQueryWin&) = delete;
- DeviceInfoQueryWin& operator=(const DeviceInfoQueryWin&) = delete;
- ~DeviceInfoQueryWin();
- // Add a device to |device_info_list_| using its |device_path| so that
- // its device info can be retrieved.
- bool AddDevice(const std::wstring& device_path);
- // Get the device info and store it into |device_info_data_|, this function
- // should be called at most once.
- bool GetDeviceInfo();
- // Get device string property and store it into |property_buffer|.
- bool GetDeviceStringProperty(const DEVPROPKEY& property,
- std::string* property_buffer);
- bool device_info_list_valid() {
- return device_info_list_ != INVALID_HANDLE_VALUE;
- }
- private:
- HDEVINFO device_info_list_ = INVALID_HANDLE_VALUE;
- // When device_info_data_.cbSize != 0, |device_info_data_| is valid.
- SP_DEVINFO_DATA device_info_data_;
- };
- } // namespace device
- #endif // DEVICE_BASE_DEVICE_INFO_QUERY_WIN_H_
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