converting D's string to use with C API with unicode

[Jack]

So in D I have a struct like this:

>struct ProcessResult
>{
>	string[] output;
>	bool ok;
>}

in order to use output from C WINAPI with unicode, I need to 
convert each string to wchar* so that i can acess it from C with 
wchar_t*. Is that right or am I missing anything?


>struct ProcessResult
>{
>	string[] output;
>	bool ok;
>
>	C_ProcessResult toCResult()
>	{
>		auto r = C_ProcessResult();
>		r.ok = this.ok; // just copy, no conversion needed
>		foreach(s; this.output)
>			r.output ~= cast(wchar*)s.ptr;
>		return r;
>	}
>}

>version(Windows) extern(C) export
>struct C_ProcessResult
>{
>	wchar*[] output;
>	bool ok;
>}