Newsgroup: it.comp.lang.c++
Titolo: HELP: Does a class polygon exist ? Fill area that is the intersection of more polygon

Hello everybody,
I have developed an Windows application with MS Visual C++ using MFC.
I have the following problem:
I have to draw more polygon (geographical area).
Each polygon must be filled with different color (this is not problem), but
the areas that are intersection of more polygon must be filled with another
color.
My question is :
Is it possible fill only the area that is the intersection of more polygon ?
Thank you in advance for your collaboration !
Bye Bye
George Washington
P.S. My english is not good, I hope that my explanation is clear.
       Please, tell me about any errors present in this letter.

 Is it possible fill only the area that is the intersection of more
polygon ?
Yes.  For the explanation HOW, please go to news:microsoft.public.vc.mfc
Victor
--
Please remove capital A's from my address when replying by mail

Victor Bazarov <vAba...@dAnai.com> wrote in message
8ir748$6ai$1...@bob.news.rcn.net...

Hello Victor,
thank you for your collaboration.
I didn't find the explanation in news:microsoft.public.vc.mfc .
Please, tell me how to find it !
Bye Bye
George Washington

, he is a teacher
at Padova University, he will explain it to you in your language.
MFC and graphics are off-topic here, in alt.comp.lang.learn.c-c++.
I trust you won't post your off-topic questions in a wrong newsgroup
after that.  Please use a different newsgroup for OS-specific
questions.
A direction to move in: Look at CreatePolygonRgn() function and
other HRGN functions in Windows API.  That's all I can tell you.
Best of luck!
Victor
P.S. To Maurizio Loreti: please don't tell me in which language
     to post any more, will you?  I don't speak Italian and I do
     what I can to help others by means available to me.


      what I can to help others by means available to me.
Yes, I will do.  Your message is cross-posted to two newsgroups; you
may followup to the only one that, according to their charters, is
relevant to your discussion.
-- 
Maurizio Loreti                         
http://www.pd.infn.it/~loreti/mlo.html
Univ. of Padova, Dept. of Physics - Padova, Italy            
lor...@pd.infn.it

 relevant to your discussion.
NO, the one I am reading and replying to is NOT relevant.  Didn't you
get that?  Well, maybe now you will.  The original post was OFF-TOPIC.
I don't know the rules of it.comp.lang.c++, that may be my deficiency.
However, I don't intend to post there and I am not going to learn the
rules.  I reply when I think it's appropriate, and if the message I
am replying to has been cross-posted, I don't change the newsgroup
list my reply is going to because that was the OP's doing.  I am not
here to re-habilitate anybody or _correct_ anybody's mistakes.  Those
I MY rules and I follow them.  If you don't like that, tough luck.  I
am not going to change that.  Ban me from your newsgroup if you wish.
But don't tell me what to do.
You cross-posted to alt.comp.lang.learn.c-c++ and thus have stepped
over the line you drew for yourself.  You're violating the rules of
alt.comp.lang.learn.c-c++: your post is OFF-TOPIC.  Do you want to
call it quits?  Or do you want to continue that purposeless pickering
(which I didn't expect from  a fifty-year-old University fellow)?
I am giving you the last word.  Use it wisely.
