Most welcome york528   :)

Thank you!~~~ :laugh: I'll think about it and consider Randor's idea

Thank you :-O

Yes That's the problem I'll try later Thank you so much for your advise ;P

Thanks for your advise I'll have a try ;P

One more question Product //abstract Creator //abstract +Method() +FactoryMethod() | | | | | | ConcreteProduct<-------------ConcreteCreator +Method() +FactoryMethod()-----return new ConcreteProduct In the demo code of Factory Pattern they use return to new a ConcreteProduct object Factory* fac = new ConcreteFactory(); Product* p = fac->CreateProduct(); what about using a member variabal of Creator to control Creator's behavior like: Product* p = new CreateProduct(); //use p to initialize member variable Product* _p; Factory* fac = new ConcreteFactory(p); and use like "fac->_p->method()" to call different subclass member funtion is it good or not to use a abstract class object as member variabal to control its behavior ???:confused:

I'm afraid this is to general question worth of a full size article. Give some more specific problem which folks could dispute on.

where i can get latest platform SDK my ide is VC6.0 i am a Chinese so sometimes i can't quite understand correctly Thanks a lot ;) ;)

It seems your problem solved and I arrived late,but I glad it solved. :-D

search on the header files of VC(ctrl+shift+F) and see is it existing on Winbase.h or windows.h?

And Im thankful twice. :-D