1 /*
   2  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 /*
  27  * Common AccessBridge IPC message definitions
  28  */
  29 
  30 #include <windows.h>
  31 #include <winuser.h>
  32 
  33 #ifndef __AccessBridgeMessages_H__
  34 #define __AccessBridgeMessages_H__
  35 
  36 
  37 // used for messages between AccessBridge dlls to manage IPC
  38 // In the SendMessage call, the third param (WPARAM) is
  39 // the source HWND (ourAccessBridgeWindow in this case),
  40 // and the fourth param (LPARAM) is the size in bytes of
  41 // the package put into shared memory.
  42 #define AB_MEMORY_MAPPED_FILE_SETUP (WM_USER+0x1000)
  43 
  44 // used for messages between AccessBridge dlls to manage IPC
  45 // In the SendMessage call, the third param (WPARAM) is
  46 // the source HWND (ourAccessBridgeWindow in this case),
  47 // and the fourth param (LPARAM) is the size in bytes of
  48 // the package put into shared memory.
  49 #define AB_MESSAGE_WAITING (WM_USER+0x1001)
  50 
  51 // used for messages from JavaDLL to itself (or perhaps later also
  52 // for messages from WindowsDLL to itself).  Used with PostMessage,
  53 // it is called for deferred processing of messages to send across
  54 // to another DLL (or DLLs)
  55 #define AB_MESSAGE_QUEUED (WM_USER+0x1002)
  56 
  57 // used to let other AccessBridge DLLs know that one of the DLLs
  58 // they are communicating with is going away (not reversable)
  59 #define AB_DLL_GOING_AWAY (WM_USER+0x1003)
  60 
  61 
  62 // used as part of the Memory-Mapped file IPC setup.  The first
  63 // constant is the query, the second the response, that are put
  64 // into the memory mapped file for reading by the opposite DLL
  65 // to verify that communication is working
  66 #define AB_MEMORY_MAPPED_FILE_OK_QUERY "OK?"
  67 #define AB_MEMORY_MAPPED_FILE_OK_ANSWER "OK!"
  68 
  69 
  70 BOOL initBroadcastMessageIDs();
  71 
  72 
  73 #endif