/// <summary> /// /// </summary> /// <param name="deviceInfo"></param> /// <param name="propertyType"></param> /// <param name="buffer"></param> /// <returns></returns> protected abstract bool LoadValue(DeviceInfo deviceInfo, out TPropertyType propertyType, out Api.Buffer buffer);
protected override bool LoadValue(DeviceInfo deviceInfo, out DeviceRegistryPropertyType propertyType, out Api.Buffer buffer)
{
if (!SetupDi.GetDeviceRegistryProperty(deviceInfo, Key, out propertyType, out buffer))
{
// Only "not found" errors are valid failures.
var lastError = ErrorHelpers.GetLastError();
if (lastError == ErrorCode.NotFound)
{
return(false);
}
// Everything else is an unexpected failure.
throw new DeviceManagerWindowsException("Unable to query device registry property.");
}
return(true);
}