Window created with Windows API is not visible

[rikki cattermole]

registeredClass.style = 32_769;

Don't use an integer like that, stick with bit wise ors.



LPCWSTR classname = toUTF16z(name);

GC owned memory, that could result in surprises.



const LPWSTR windowname = toUTF16z(title);

Ditto



I'm not sure your window callback procedure is right.

For instance you are not calling DefWindowProc, and you are not handling 
WM_PAINT in any form.



But one other thing, your approach to the event loop is going to come 
back to bite you at some point. Windows is based around a push event 
loop model, not a pull like other system Windowing libraries (such as 
X11). It can get recursive. I learned this one the hard way.