1 /*
2  * Copyright (c) 2005, 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 #include "awt_Component.h"
27 
28 #include <commctrl.h>
29 
30 #ifndef _COMCTL32UTIL_H
31 #define _COMCTL32UTIL_H
32 
33 class ComCtl32Util
34 {
35     public:
GetInstance()36         static ComCtl32Util &GetInstance() {
37             static ComCtl32Util theInstance;
38             return theInstance;
39         }
40 
41         void InitLibraries();
42 
IsToolTipControlInitialized()43         INLINE BOOL IsToolTipControlInitialized() {
44             return m_bToolTipControlInitialized;
45         }
46 
47         WNDPROC SubclassHWND(HWND hwnd, WNDPROC _WindowProc);
48         // DefWindowProc is the same as returned from SubclassHWND
49         void UnsubclassHWND(HWND hwnd, WNDPROC _WindowProc, WNDPROC _DefWindowProc);
50         // DefWindowProc is the same as returned from SubclassHWND or NULL
51         LRESULT DefWindowProc(WNDPROC _DefWindowProc, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
52 
53     private:
54         ComCtl32Util();
55         ~ComCtl32Util();
56 
57         BOOL m_bToolTipControlInitialized;
58 
59         // comctl32.dll version 6 window proc
60         static LRESULT CALLBACK SharedWindowProc(HWND hwnd, UINT message,
61                                                  WPARAM wParam, LPARAM lParam,
62                                                  UINT_PTR uIdSubclass, DWORD_PTR dwRefData);
63 };
64 
65 #endif // _COMCTL32UTIL_H
66