Re: Access and alias

[Alfred Hilscher <Alfred.Hilscher@icn.siemens.de>]

Laurent Guerby wrote:
> 
> "NANCY HEHIR" <nanceh.ennis@tinet.ie> writes:
> 
> > I am trying to use SetCommState to configure a Comm Port.
> > I have created a handle for COM1 using CreateFile.
> > SetCommState takes as it's parameters the handle and a type LPDCB (access to
> > the DCB)
> > The type LPDCB is defined in Win32-winbase.ads
> 
> Okay, win32, I see now, no way around this major braindamage then ;-).
> 
> Last time I had to use the Win32 API, I manually imported the needed
> entries (a dozen) using System.Address as parameter type and 'Address
> on various things on the caller side. This way I avoided the
> dependency on the Win32 binding hierarchy, hence easier build process.
> Of course, after a dozen functions, I'd switch to use the Win32
> binding.

If you write your own bindings, you shouldn't work with 'address. Use an
in out parameter instead. 
E.g. proc (ref : SYSTEM.ADDRESS); --> proc (ref : in out X);