This method retrieves whether or not the control wraps when it reaches the end of the list of integers.
HRESULT get_Circular( BOOL *pfCircular );
NOERROR indicates success. E_OUTOFMEMORY indicates that the system is out of memory.
If this property is enabled, the integer spinner control wraps from the last integer to the first or vice versa, depending on which direction the user is going.
Circular is defined as follows: If a user attempts to set the spinner control to a value greater than the maximum, the value is reset to the minimum. If a user attempts to set the spinner control to a value smaller than minimum, the value is reset to the maximum.