interfacing with the windows api

[lee]

In article <dtep0n$19sj$1 at digitaldaemon.com>, Kyle Furlong says...
>
>lee wrote:
>> I'm trying to write a short windows application, and I need to define a windows
>> class object. In C this is simple since the class is defined in the windows
>> header file. Unfortunately, I can't create a wc object in my D program. I tried
>> importing the header file, but the class definition doesn't carry over into the
>> program's namespace. Moreover, this is just part of a larger problem. I have
>> been experiencing problems importing user defined data types from C header files
>> in general. If someone could explain how D interfaces with C code, I would
>> really appreciate it. 
>> Thanks
>> Lee 
>> 
>> 
>RTFM, http://www.digitalmars.com/d/windows.html

thanks for the reference. 

Unfortunately when I tried to compile it the debugger flaged several errors in
the resulting obj file. Each of these errors involved undefined Symbols. For
example The first error reads;
'winsamp.obj(winsamp) 
error 42: Symbol Undefined _SelectObject at 8'

I moved a copy of winsamp.d into the same directory as dmd.exe, and I tried
compiling it with the line ;
'dmd winsamp.d'

Is there anything wrong with the source code. Or did I compile it wrong?