Alexey Barkovoy wrote: > Delphi is compatible at least with Borland C++ and MS VC++. And taking in > accout > how COM intefaces are implemented in C++ (I'm supposing here all C++ compilers > support the same syntax) - each C++ compiler supporting MS way to declare COM > interfaces has compatible VMT layout.
The layout of C++ classes is compiler specific. In so far BCB and MSVC may be compatible, or MSC and BC, but only for specific compiler versions. OPL (fpc, Delphi...) classes are different from C++ classes, not only in the VMT layout, but also in other significant details. That's why BCB provides special support for TObject based classes, but these classes still are different from the C++ classes. COM (ActiveX...) is not related to C++, it defines another object model, data types, and class layout. If you really need portable classes, then you should use COM/ActiveX on Windows, or possibly CORBA for more platform independence. Though I don't know whether fpc supports CORBA? DoDi _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
