VC++ Exceptions

Handling managed exceptions in VC++ is basically the same as C#. VC++ using managed extensions exposes some features of exceptions that are not available in C#. Those differences will be illustrated later. Listing 15.12 shows how to define and use a custom exception class. The full source for this sample can be found in C++Exceptions\BasicExceptions.

Listing 15.12. Basic Managed VC++ Exceptions
__gc class MyException : public System::ApplicationException
{
public:
    MyException() : System::ApplicationException()
    {
    }
    MyException(System::String __gc *msg) : System::ApplicationException(msg)
    {
    }
} ;
void ThrowMyException()
{
    throw new MyException(new System::String("This exception is thrown from
 ThrowMyException")); } int wmain(void) ...

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