1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the ActiveQt framework of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT_NO_WIN_ACTIVEQT
#include <qapplication.h>
#include <qwidget.h>
#include <qt_windows.h>
QT_BEGIN_NAMESPACE
bool qax_ownQApp = false;
HHOOK qax_hhook = 0;
// in qaxserver.cpp
extern char qAxModuleFilename[MAX_PATH];
extern bool qAxIsServer;
extern ITypeLib *qAxTypeLibrary;
extern unsigned long qAxLockCount();
extern QString qAxInit();
extern void qAxCleanup();
extern HANDLE qAxInstance;
static uint qAxThreadId = 0;
extern HRESULT UpdateRegistry(int bRegister);
extern HRESULT GetClassObject(const GUID &clsid, const GUID &iid, void **ppUnk);
STDAPI DllRegisterServer()
{
return UpdateRegistry(true);
}
STDAPI DllUnregisterServer()
{
return UpdateRegistry(false);
}
STDAPI DllGetClassObject(const GUID &clsid, const GUID &iid, void** ppv)
{
if (!qAxThreadId)
qAxThreadId = GetCurrentThreadId();
else if (GetCurrentThreadId() != qAxThreadId)
return E_FAIL;
GetClassObject(clsid, iid, ppv);
if (!*ppv)
return CLASS_E_CLASSNOTAVAILABLE;
return S_OK;
}
STDAPI DllCanUnloadNow()
{
if (GetCurrentThreadId() != qAxThreadId)
return S_FALSE;
if (qAxLockCount())
return S_FALSE;
if (!qax_ownQApp)
return S_OK;
// check if qApp still runs widgets (in other DLLs)
QWidgetList widgets = qApp->allWidgets();
int count = widgets.count();
for (int w = 0; w < widgets.count(); ++w) {
// remove all Qt generated widgets
QWidget *widget = widgets.at(w);
if (widget->windowType() == Qt::Desktop || widget->objectName() == QLatin1String("Qt internal tablet widget"))
count--;
}
if (count)
return S_FALSE;
// no widgets left - destroy qApp
if (qax_hhook)
UnhookWindowsHookEx(qax_hhook);
delete qApp;
qax_ownQApp = false;
// never allow unloading - safety net for Internet Explorer
return S_FALSE;
}
EXTERN_C BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpvReserved)
{
GetModuleFileNameA(hInstance, qAxModuleFilename, MAX_PATH-1);
qAxInstance = hInstance;
qAxIsServer = true;
if (dwReason == DLL_PROCESS_ATTACH) {
DisableThreadLibraryCalls(hInstance);
qAxInit();
} else if (dwReason == DLL_PROCESS_DETACH) {
qAxCleanup();
}
return true;
}
QT_END_NAMESPACE
#endif // QT_NO_WIN_ACTIVEQT
|
