Function CreateWindow 

pub unsafe extern "system" fn CreateWindow(
    lpclassname: PCWSTR,
    lpwindowname: PCWSTR,
    dwstyle: WINDOW_STYLE,
    x: i32,
    y: i32,
    nwidth: i32,
    nheight: i32,
    hwndparent: HWND,
    hmenu: HMENU,
    hinstance: HINSTANCE,
    lpparam: *const c_void,
) -> HWND

#27 CreateWindow

make a window