FOR_EACH and LOCK

Listing 1: The gclock class.

class gclock
{
    gcroot<System::Object*> m_object;
public:
    gclock( System::Object * object ) : m_object( object )
    {
        System::Threading::Monitor::Enter( object );
    }
    ~gclock()
    {
        System::Threading::Monitor::Exit( m_object );
    }
    operator bool() const
    {
        return true;
    }
};