toUTFz and WinAPI GetTextExtentPoint32W

[Timon Gehr]

On 09/20/2011 08:34 PM, Trass3r wrote:
>> Are you sure that the call requires the string to be null terminated?
>> I do not know that winapi function, but this might work:
>>
>> bool test(HDC dc, string str, SIZE* s)
>> {
>> auto wstr = to!(wchar[])str;
>> GetTextExtentPoint32W(dc, wstr.ptr, wstr.length, s);
>> ...
>
> It doesn't need to be null-terminated for that function.
> Shouldn't you use to!wstring though?!

It has to be copied anyway, so there is no real difference. I just did 
not know the signature of that function, and if it had been missing the 
const, wstring would not have worked. But if there is a const, wstring 
is indeed superior because shorter and clearer.