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## com.exe4j
Class Controller

    java.lang.Object
      com.exe4j.Controller

    public class Controller

extends java.lang.Object

This class allows you to control the native splash screen of a generated executable from your Java code and register a StartupListener to receive startup events in single instance mode.

In order to use this class, please include `exe4jlib.jar` from your exe4j installation into your class path. You do not need to distribute this file along with your application, exe4j will do this automatically for you.

Author:
  ej-technologies GmbH

Nested Class Summary
`static class` | `Controller.ConnectionException` The exception thrown by methods of the `Controller` class to indicate that a splash screen operation was not successful.
`static interface` | `Controller.StartupListener` The interface for startup events in single instance mode.

Method Summary
`static void` | `hide()` Programmatically hide the native splash screen.
`static void` | `registerStartupListener(Controller.StartupListener startupListener)` Register a StartupListener to receive startup events in single instance mode.
`static void` | `writeMessage(java.lang.String message)` Update the status text line of the native splash screen with a different text.

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

Method Detail

### writeMessage

    public static void writeMessage(java.lang.String message)
                             throws Controller.ConnectionException

  Update the status text line of the native splash screen with a different text.

  Parameters:
    `message` - the new text
  Throws:
    `Controller.ConnectionException` - if the call fails

### hide

    public static void hide()
                     throws Controller.ConnectionException

  Programmatically hide the native splash screen. If the "auto-off" mode is enabled for the splash screen, programmatic hiding may not be necessary if you want the splash screen to disappear with the showing of the first window.

  Throws:
    `Controller.ConnectionException` - if tha call fails

### registerStartupListener

    public static void registerStartupListener(Controller.StartupListener startupListener)

  Register a StartupListener to receive startup events in single instance mode. Request that are already queued will be invoked immediately on the startup listener before this call returns. Subsequent calls will be from different threads.

  Parameters:
    `startupListener` - the listener

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