1 /*
2 * Copyright (c) 1996, 2014, 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
74
75 // Needed by JAWT: see awt_DrawingSurface.cpp.
76 extern jclass jawtVImgClass;
77 extern jclass jawtVSMgrClass;
78 extern jclass jawtComponentClass;
79 extern jfieldID jawtPDataID;
80 extern jfieldID jawtSDataID;
81 extern jfieldID jawtSMgrID;
82
83 extern void DWMResetCompositionEnabled();
84
85 /************************************************************************
86 * Utilities
87 */
88
89 /* Initialize the Java VM instance variable when the library is
90 first loaded */
91 JavaVM *jvm = NULL;
92
93 JNIEXPORT jint JNICALL
94 JNI_OnLoad(JavaVM *vm, void *reserved)
95 {
96 TRY;
97
98 jvm = vm;
99 return JNI_VERSION_1_2;
100
101 CATCH_BAD_ALLOC_RET(0);
102 }
103
104 extern "C" JNIEXPORT jboolean JNICALL AWTIsHeadless() {
105 static JNIEnv *env = NULL;
106 static jboolean isHeadless;
107 jmethodID headlessFn;
108 jclass graphicsEnvClass;
109
110 if (env == NULL) {
111 env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
112 graphicsEnvClass = env->FindClass(
113 "java/awt/GraphicsEnvironment");
114 if (graphicsEnvClass == NULL) {
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1 /*
2 * Copyright (c) 1996, 2015, 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
74
75 // Needed by JAWT: see awt_DrawingSurface.cpp.
76 extern jclass jawtVImgClass;
77 extern jclass jawtVSMgrClass;
78 extern jclass jawtComponentClass;
79 extern jfieldID jawtPDataID;
80 extern jfieldID jawtSDataID;
81 extern jfieldID jawtSMgrID;
82
83 extern void DWMResetCompositionEnabled();
84
85 /************************************************************************
86 * Utilities
87 */
88
89 /* Initialize the Java VM instance variable when the library is
90 first loaded */
91 JavaVM *jvm = NULL;
92
93 JNIEXPORT jint JNICALL
94 DEF_JNI_OnLoad(JavaVM *vm, void *reserved)
95 {
96 TRY;
97
98 jvm = vm;
99 return JNI_VERSION_1_2;
100
101 CATCH_BAD_ALLOC_RET(0);
102 }
103
104 extern "C" JNIEXPORT jboolean JNICALL AWTIsHeadless() {
105 static JNIEnv *env = NULL;
106 static jboolean isHeadless;
107 jmethodID headlessFn;
108 jclass graphicsEnvClass;
109
110 if (env == NULL) {
111 env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
112 graphicsEnvClass = env->FindClass(
113 "java/awt/GraphicsEnvironment");
114 if (graphicsEnvClass == NULL) {
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