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diff --git a/app/src/main/java/de/mud/terminal/VDUInput.java b/app/src/main/java/de/mud/terminal/VDUInput.java
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+/*
+ * This file is part of "JTA - Telnet/SSH for the JAVA(tm) platform".
+ *
+ * (c) Matthias L. Jugel, Marcus Meißner 1996-2005. All Rights Reserved.
+ *
+ * Please visit http://javatelnet.org/ for updates and contact.
+ *
+ * --LICENSE NOTICE--
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * --LICENSE NOTICE--
+ *
+ */
+package de.mud.terminal;
+
+import java.util.Properties;
+
+/**
+ * An interface for a terminal that accepts input from keyboard and mouse.
+ *
+ * @author Matthias L. Jugel, Marcus Meißner
+ * @version $Id: VDUInput.java 499 2005-09-29 08:24:54Z leo $
+ */
+public interface VDUInput {
+
+  public final static int KEY_CONTROL = 0x01;
+  public final static int KEY_SHIFT = 0x02;
+  public final static int KEY_ALT = 0x04;
+  public final static int KEY_ACTION = 0x08;
+
+
+
+  /**
+   * Direct access to writing data ...
+   * @param b
+   */
+  void write(byte b[]);
+
+  /**
+   * Terminal is mouse-aware and requires (x,y) coordinates of
+   * on the terminal (character coordinates) and the button clicked.
+   * @param x
+   * @param y
+   * @param modifiers
+   */
+  void mousePressed(int x, int y, int modifiers);
+
+  /**
+   * Terminal is mouse-aware and requires the coordinates and button
+   * of the release.
+   * @param x
+   * @param y
+   * @param modifiers
+   */
+  void mouseReleased(int x, int y, int modifiers);
+
+  /**
+   * Override the standard key codes used by the terminal emulation.
+   * @param codes a properties object containing key code definitions
+   */
+  void setKeyCodes(Properties codes);
+
+  /**
+   * main keytyping event handler...
+   * @param keyCode the key code
+   * @param keyChar the character represented by the key
+   * @param modifiers shift/alt/control modifiers
+   */
+  void keyPressed(int keyCode, char keyChar, int modifiers);
+
+  /**
+   * Handle key Typed events for the terminal, this will get
+   * all normal key types, but no shift/alt/control/numlock.
+   * @param keyCode the key code
+   * @param keyChar the character represented by the key
+   * @param modifiers shift/alt/control modifiers
+   */
+  void keyTyped(int keyCode, char keyChar, int modifiers);
+}