awt_Desktop.cpp revision 11443:3ce5eb12d646 
1/*
2 * Copyright (c) 2005, 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
23 * questions.
24 */
25
26#include "jni_util.h"
27#include "awt.h"
28#include <jni.h>
29#include <shellapi.h>
30#include <float.h>
31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
36/*
37 * Class:     sun_awt_windows_WDesktopPeer
38 * Method:    ShellExecute
39 * Signature: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
40 */
41JNIEXPORT jstring JNICALL Java_sun_awt_windows_WDesktopPeer_ShellExecute
42  (JNIEnv *env, jclass cls, jstring fileOrUri_j, jstring verb_j)
43{
44    LPCWSTR fileOrUri_c = JNU_GetStringPlatformChars(env, fileOrUri_j, JNI_FALSE);
45    CHECK_NULL_RETURN(fileOrUri_c, NULL);
46    LPCWSTR verb_c = JNU_GetStringPlatformChars(env, verb_j, JNI_FALSE);
47    if (verb_c == NULL) {
48        JNU_ReleaseStringPlatformChars(env, fileOrUri_j, fileOrUri_c);
49        return NULL;
50    }
51
52    // 6457572: ShellExecute possibly changes FPU control word - saving it here
53    unsigned oldcontrol87 = _control87(0, 0);
54    HINSTANCE retval = ::ShellExecute(NULL, verb_c, fileOrUri_c, NULL, NULL, SW_SHOWNORMAL);
55    DWORD error = ::GetLastError();
56    _control87(oldcontrol87, 0xffffffff);
57
58    JNU_ReleaseStringPlatformChars(env, fileOrUri_j, fileOrUri_c);
59    JNU_ReleaseStringPlatformChars(env, verb_j, verb_c);
60
61    if ((int)retval <= 32) {
62        // ShellExecute failed.
63        LPTSTR buffer = NULL;
64        int len = ::FormatMessage(
65                    FORMAT_MESSAGE_ALLOCATE_BUFFER |
66                    FORMAT_MESSAGE_FROM_SYSTEM  |
67                    FORMAT_MESSAGE_IGNORE_INSERTS,
68                    NULL,
69                    error,
70                    MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
71                    (LPTSTR)&buffer,
72                    0,
73                    NULL );
74
75        if (buffer) {
76            jstring errmsg = JNU_NewStringPlatform(env, buffer);
77            LocalFree(buffer);
78            return errmsg;
79        }
80    }
81
82    return NULL;
83}
84
85#ifdef __cplusplus
86}
87#endif
88