FIX: CRuntimeClass Not Available for CInternetException

RESOLUTION

C++ exception handling can determine the type of exception thrown. A typical handler has a format similar to the following:

   try
   {
      // Execute some code that might throw an exception.
   }
   catch( CInternetException* e )
   {
      // Handle the Internet exception here.
   }
   catch( CException* e )
   {
      // Handle all other types of exceptions here.
   }
				

If for some reason it is still necessary to obtain the run-time class information for a class that may be CinternetException, it is possible to use the Run-Time Type Information (RTTI) provided by Visual C++. To use RTTI, the Run-Time Type Information must be enabled in the C++ Language settings for the project. Then, the dynamic_cast operator can be used to attempt a conversion of the exception to CInternetException. If the cast fails, the exception is of another type. It is also possible to obtain the Run-Time Type Information directly as follows:

   const type_info& info = typeid(*e);
				

   CRuntimeClass* prt;
   prt = RUNTIME_CLASS( CInternetException );