| Read/Write | About the Handler I/O Connector | 
| Description | Determines the control of Material Handler connector Pin 20. | 
| VB Syntax | handler.IndexState = value | 
| Variable | (Type) - Description | 
| handler | (object) - A Handler I/O object | 
| value | (boolean) False - Pin 20 is controlled by Output Port B6 True - Pin 20 is controlled by the Index signal | 
| Return Type | Boolean | 
| Default | False | 
| Examples | handler.IndexState = False 'Write bState = handler.IndexState 'Read | 
| C++ Syntax | HRESULT put_IndexState (BOOL *pVal); HRESULT get_IndexState (BOOL newVal); | 
| Interface | IHWMaterialHandlerIO2 |