private static string GetPropertyString(DeviceInfoSet deviceInfoSet, Wrapper.SpDevInfoData deviceInfoData, Wrapper.DevPropKey key)
{
var propertySize = GetPropertyBufferSize(deviceInfoSet, deviceInfoData, key);
var devPropKey = key;
using (var buffer = new DeviceIdBuffer(propertySize))
{
bool isSuccessful = Wrapper.SetupDiGetDeviceProperty(deviceInfoSet.Handle.DangerousGetHandle(),
ref deviceInfoData,
ref devPropKey,
out int _,
buffer.Handle.DangerousGetHandle(),
propertySize,
out int _);
int errorCode = Marshal.GetLastWin32Error();
if (!isSuccessful)
{
throw new Win32Exception(errorCode);
}
return(Marshal.PtrToStringAuto(buffer.Handle.DangerousGetHandle()));
}
}
private static IEnumerable <string> GetPropertyArray(DeviceInfoSet deviceInfoSet, Wrapper.SpDevInfoData deviceInfoData, Wrapper.DevPropKey key)
{
var result = new string[0];
try
{
var propertySize = GetPropertyBufferSize(deviceInfoSet, deviceInfoData, key);
var devPropKey = key;
using (var buffer = new DeviceIdBuffer(propertySize))
{
bool isSuccessful = Wrapper.SetupDiGetDeviceProperty(deviceInfoSet.Handle.DangerousGetHandle(),
ref deviceInfoData,
ref devPropKey,
out int _,
buffer.Handle.DangerousGetHandle(),
propertySize,
out int _);
int errorCode = Marshal.GetLastWin32Error();
if (!isSuccessful)
{
throw new Win32Exception(errorCode);
}
var data = new byte[propertySize];
Marshal.Copy(buffer.Handle.DangerousGetHandle(), data, 0, propertySize);
result = System.Text.Encoding.Unicode.GetString(data).TrimEnd('\0').Split('\0');
}
}
catch (Exception e)
{
Debug.Print(e.Message);
}
return(result);
}
