erreur sur la ligne dans le main :

--------------------Configuration: BDDManager - Win32 Debug--------------------
Compiling...
a.cpp
c:\3dsmax6\maxsdk\samples\bddmanager\a.cpp(32) : error C2259: 'ImplementationClasseB' : cannot instantiate abstract class due to following members:
        c:\3dsmax6\maxsdk\samples\bddmanager\a.cpp(23) : see declaration of 'ImplementationClasseB'
c:\3dsmax6\maxsdk\samples\bddmanager\a.cpp(32) : warning C4259: 'void __thiscall InterfaceClasseA::actionA(void)' : pure virtual function was not defined
        c:\3dsmax6\maxsdk\samples\bddmanager\a.cpp(4) : see declaration of 'actionA'
c:\3dsmax6\maxsdk\samples\bddmanager\a.cpp(32) : error C2259: 'ImplementationClasseB' : cannot instantiate abstract class due to following members:
        c:\3dsmax6\maxsdk\samples\bddmanager\a.cpp(23) : see declaration of 'ImplementationClasseB'
c:\3dsmax6\maxsdk\samples\bddmanager\a.cpp(32) : warning C4259: 'void __thiscall InterfaceClasseA::actionA(void)' : pure virtual function was not defined
        c:\3dsmax6\maxsdk\samples\bddmanager\a.cpp(4) : see declaration of 'actionA'
c:\3dsmax6\maxsdk\samples\bddmanager\a.cpp(33) : warning C4508: 'main' : function should return a value; 'void' return type assumed
Error executing cl.exe.

a.obj - 2 error(s), 3 warning(s)