.NET Common Language Runtime Unleashed

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) ...