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// Copyright 2025 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#ifdef _WIN32
#include "Common/WindowsDevice.h"
#include <string>
#include "Hidclass.h"
#include "Common/CommonFuncs.h"
#include "Common/Logging/Log.h"
namespace Common
{
std::wstring GetDeviceProperty(const HDEVINFO& device_info, const PSP_DEVINFO_DATA device_data,
const DEVPROPKEY* requested_property)
{
DWORD required_size = 0;
DEVPROPTYPE device_property_type;
BOOL result;
result = SetupDiGetDeviceProperty(device_info, device_data, requested_property,
&device_property_type, nullptr, 0, &required_size, 0);
if (!result && GetLastError() != ERROR_INSUFFICIENT_BUFFER)
return std::wstring();
std::vector<TCHAR> unicode_buffer(required_size / sizeof(TCHAR));
result = SetupDiGetDeviceProperty(
device_info, device_data, requested_property, &device_property_type,
reinterpret_cast<PBYTE>(unicode_buffer.data()), required_size, nullptr, 0);
if (!result)
return std::wstring();
return std::wstring(unicode_buffer.data());
}
std::optional<std::wstring> GetPropertyHelper(auto function, auto dev,
const DEVPROPKEY* requested_property,
DEVPROPTYPE expected_type)
{
DEVPROPTYPE type{};
ULONG buffer_size{};
if (const auto result = function(dev, requested_property, &type, nullptr, &buffer_size, 0);
result != CR_SUCCESS && result != CR_BUFFER_SMALL)
{
if (result != CR_NO_SUCH_VALUE)
WARN_LOG_FMT(COMMON, "CM_Get_DevNode_Property returned: {}", result);
return std::nullopt;
}
if (type != expected_type)
{
WARN_LOG_FMT(COMMON, "CM_Get_DevNode_Property unexpected type: 0x{:x}", type);
return std::nullopt;
}
std::optional<std::wstring> property;
// FYI: It's legal to write the null terminator at data()[size()] of std::basic_string.
property.emplace(buffer_size / sizeof(WCHAR) - 1, L'\0');
if (const auto result = function(dev, requested_property, &type,
reinterpret_cast<BYTE*>(property->data()), &buffer_size, 0);
result != CR_SUCCESS)
{
ERROR_LOG_FMT(COMMON, "CM_Get_DevNode_Property returned: {}", result);
return std::nullopt;
}
return property;
}
std::optional<std::wstring> GetDevNodeStringProperty(DEVINST dev,
const DEVPROPKEY* requested_property)
{
return GetPropertyHelper(CM_Get_DevNode_Property, dev, requested_property, DEVPROP_TYPE_STRING);
}
std::optional<std::wstring> GetDeviceInterfaceStringProperty(LPCWSTR iface,
const DEVPROPKEY* requested_property)
{
return GetPropertyHelper(CM_Get_Device_Interface_Property, iface, requested_property,
DEVPROP_TYPE_STRING);
}
} // namespace Common
#endif
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