GPIs

java.lang.Object
- com.zebra.rfid.api3.GPIs

```
public class GPIs
extends java.lang.Object
```
This class represents the General Purpose Input (GPI)

Nested Class Summary

Nested Classes
Modifier and Type Class Description

class GPIs.Port
Represents the individual GPI Port

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`enablePort(int portIndex, boolean enabled)`	Sets the GPI port to enabled or disabled state
`int`	`getLength()`	Gets the number of GPI ports supported by the reader
`GPI_PORT_STATE`	`getPortState(int portIndex)`	Gets the current GPI Port state
`boolean`	`isPortEnabled(int portIndex)`	Gets the GPI Port status

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - isPortEnabled
```
public boolean isPortEnabled(int portIndex)
                      throws InvalidUsageException,
                             OperationFailureException
```
    Gets the GPI Port status
    
    Parameters:
    
    portIndex - Index of the GPI port to be enabled/disabled
    
    Returns:
    
    GPI Port status
    
    Throws:
    
    InvalidUsageException
    
    OperationFailureException
  - enablePort
```
public void enablePort(int portIndex,
                       boolean enabled)
                throws InvalidUsageException,
                       OperationFailureException
```
    Sets the GPI port to enabled or disabled state
    
    Parameters:
    
    portIndex - Index of the GPI port to be enabled/disabled
    
    enabled - Set to true to enable the GPI post, else false
    
    Throws:
    
    InvalidUsageException
    
    OperationFailureException
  - getPortState
```
public GPI_PORT_STATE getPortState(int portIndex)
                            throws InvalidUsageException,
                                   OperationFailureException
```
    Gets the current GPI Port state
    
    Parameters:
    
    portIndex - Index of the GPI port to be enabled/disabled
    
    Returns:
    
    GPI Port state
    
    Throws:
    
    InvalidUsageException
    
    OperationFailureException
  - getLength
```
public int getLength()
```
    Gets the number of GPI ports supported by the reader