class CBsp
{
	public:
		int Get()
		{
			// maybe calc new value
			return m_iTest;
		}
		void Set( int iNew )
		{
			// maybe performce checks .. do a assert .. and and and 
			if( i  10 ) i = 10; // ie.
			m_iTest = iNew;
		}

		__declspec( property ( get = Get, put = Set ) )int iTest; 

	private:
		int m_iTest;

}; 

CBsp demo;

demo.iTest = 12;
if( !demo.iTest == 10 )
{
  // this will never happen .. ( hope so );
}