Thanks. I have looked in the Pov-Ray sources but was
unable to determine the relevant modules. That's what I was asking. Thanks
for the sites. I will take a look at them. Such sites that I have looked 
at seem
to be intended for VC++. I suppose that's OK, PovRay is written in VC++.
Since Microsoft controls virtually all of the computer industry and most
computer hardware is built for Microsoft software, there seems little point
  in going to a lot of trouble trying to learn something else or to 
adapt code
written in any but Microsoft languages to work on computers using
Windows.

Thanks for the help,

David



Christian Froeschlin wrote:
>> Visual something .net or switch to a Linux. But I would still to know 
>> what
>> module in the Pov-Ray uses to send images to the screen. 
> 
> You can look at the povray sources for that, but I think you
> should rather look at the GDI tutorials listed on
> 
>   http://www.functionx.com/bcb/
> 
> and then especially
> 
>   http://www.functionx.com/bcb/gdi/bitmaps.htm

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