Is there a nice syntax to achieve optional named parameters?

[Zenw]

On Tuesday, 15 January 2019 at 11:14:54 UTC, John Burton wrote:
> As an example let's say I have a type 'Window' that represents 
> a win32 window. I'd like to be able to construct an instance of 
> the type with some optional parameters that default to some 
> reasonable settings and create the underlying win32 window.
>
> [...]

how about this

auto With(string code,T)(T value)
{
     with(value)
     {
         mixin(code ~";");
     }
	return value;
}

auto window = Window().With!q{title = "My window",width = 
800,fullscreen = true};