1 /*
   2  * Copyright (c) 1999, 2008, 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 #define _JNI_IMPLEMENTATION_
  27 #include <jawt.h>
  28 
  29 #include "awt.h"
  30 #include "awt_DrawingSurface.h"
  31 
  32 /*
  33  * Get the AWT native structure.  This function returns JNI_FALSE if
  34  * an error occurs.
  35  */
  36 extern "C" JNIEXPORT jboolean JNICALL JAWT_GetAWT(JNIEnv* env, JAWT* awt)
  37 {
  38     if (awt == NULL) {
  39         return JNI_FALSE;
  40     }
  41 
  42     if (awt->version != JAWT_VERSION_1_3
  43         && awt->version != JAWT_VERSION_1_4) {
  44         return JNI_FALSE;
  45     }
  46 
  47     awt->GetDrawingSurface = DSGetDrawingSurface;
  48     awt->FreeDrawingSurface = DSFreeDrawingSurface;
  49     if (awt->version >= JAWT_VERSION_1_4) {
  50         awt->Lock = DSLockAWT;
  51         awt->Unlock = DSUnlockAWT;
  52         awt->GetComponent = DSGetComponent;
  53     }
  54 
  55     return JNI_TRUE;
  56 }