Customizing the host keypad

The following code sample shows how to hide the host keypad:
```
public IHostKeypadDisplayInfo getHostKeypadDisplayInfo() {
       HostKeypadDisplayInfo displayInfo = new HostKeypadDisplayInfo();
       displayInfo.setKeypadVisible(false);
       return displayInfo;
}
```
The default implementation of this method returns null, indicating to the ZIETrans runtime that the settings defined in the project settings should be used to show (or not show) the host keypad (and to determine which keys to show). By overriding this method and returning a value other than null, the ZIETrans runtime will use this HostKeypadDisplayInfo object when the transformation is applied during runtime.

The following code sample shows how to show only the Enter and F1/Help keys on a host keypad:

public IHostKeypadDisplayInfo getHostKeypadDisplayInfo() {
// Construct an array of keys to include on the keypad
  KeypadKey[] keysToDisplay = new KeypadKey[] { 
                              new KeypadKey("[enter]", "Enter"), 
                              new KeypadKey("[pf1]", "Help") };

// Construct and return the keypad display info object
  return new HostKeypadDisplayInfo(keysToDisplay, true, 
                                   IHostKeypadDisplayInfo.DISPLAY_BUTTON);
}