qaxserverdll.cpp File Reference

#include <qapplication.h>
#include <qwidget.h>
#include <qt_windows.h>

Go to the source code of this file.

Functions
STDAPI	DllCanUnloadNow ()
STDAPI	DllGetClassObject (const GUID &clsid, const GUID &iid, void **ppv)
EXTERN_C BOOL WINAPI	DllMain (HINSTANCE hInstance, DWORD dwReason, LPVOID lpvReserved)
STDAPI	DllRegisterServer ()
STDAPI	DllUnregisterServer ()
HRESULT	GetClassObject (const GUID &clsid, const GUID &iid, void **ppUnk)
void	qAxCleanup ()
QString	qAxInit ()
unsigned long	qAxLockCount ()
HRESULT	UpdateRegistry (int bRegister)

Variables
HHOOK	qax_hhook = 0
bool	qax_ownQApp = false
HANDLE	qAxInstance
bool	qAxIsServer
wchar_t	qAxModuleFilename [MAX_PATH]
static uint	qAxThreadId = 0
ITypeLib *	qAxTypeLibrary

Function Documentation

DllCanUnloadNow()

STDAPI DllCanUnloadNow

(

)

Definition at line 89 of file qaxserverdll.cpp.

{
    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;
}

DllGetClassObject()

STDAPI DllGetClassObject	(	const GUID &	clsid,
		const GUID &	iid,
		void **	ppv
	)

Definition at line 76 of file qaxserverdll.cpp.

{
    if (!qAxThreadId)
        qAxThreadId = GetCurrentThreadId();
    else if (GetCurrentThreadId() != qAxThreadId)
        return E_FAIL; 

    GetClassObject(clsid, iid, ppv);
    if (!*ppv)
        return CLASS_E_CLASSNOTAVAILABLE;
    return S_OK;
}

DllMain()

EXTERN_C BOOL WINAPI DllMain	(	HINSTANCE	hInstance,
		DWORD	dwReason,
		LPVOID	lpvReserved
	)

Definition at line 122 of file qaxserverdll.cpp.

{
    GetModuleFileName(hInstance, qAxModuleFilename, MAX_PATH);
    qAxInstance = hInstance;
    qAxIsServer = true;
    
    if (dwReason == DLL_PROCESS_ATTACH) {
        DisableThreadLibraryCalls(hInstance);
        qAxInit();
    } else if (dwReason == DLL_PROCESS_DETACH) {
        qAxCleanup();
    }
    
    return true;
}

DllRegisterServer()

STDAPI DllRegisterServer

(

)

Definition at line 66 of file qaxserverdll.cpp.

{
    return UpdateRegistry(true);
}

DllUnregisterServer()

STDAPI DllUnregisterServer

(

)

Definition at line 71 of file qaxserverdll.cpp.

{
    return UpdateRegistry(false);
}

GetClassObject()

HRESULT GetClassObject	(	const GUID &	clsid,
		const GUID &	iid,
		void **	ppUnk
	)

Referenced by DllGetClassObject().

qAxCleanup()

void qAxCleanup

(

)

Definition at line 139 of file qaxserver.cpp.

Referenced by DllMain().

{
    if (!initCount)
        qWarning("qAxInit/qAxCleanup mismatch");
    
    if (--initCount)
        return;

    delete qax_factory;
    qax_factory = 0;
    
    if (qAxTypeLibrary) {
        qAxTypeLibrary->Release();
        qAxTypeLibrary = 0;
    }
    
    DeleteCriticalSection(&qAxModuleSection);
}

qAxInit()

QString qAxInit

(

)

Definition at line 111 of file qaxserver.cpp.

Referenced by DllMain().

{
    static QString libFile;

    if (initCount++)
        return libFile;
    
    InitializeCriticalSection(&qAxModuleSection);
    
    libFile = QString::fromWCharArray(qAxModuleFilename);
    libFile = libFile.toLower();
    if (LoadTypeLibEx((wchar_t*)libFile.utf16(), REGKIND_NONE, &qAxTypeLibrary) == S_OK)
        return libFile;

    int lastDot = libFile.lastIndexOf(QLatin1Char('.'));
    libFile = libFile.left(lastDot) + QLatin1String(".tlb");
    if (LoadTypeLibEx((wchar_t*)libFile.utf16(), REGKIND_NONE, &qAxTypeLibrary) == S_OK)
        return libFile;

    lastDot = libFile.lastIndexOf(QLatin1Char('.'));
    libFile = libFile.left(lastDot) + QLatin1String(".olb");
    if (LoadTypeLibEx((wchar_t*)libFile.utf16(), REGKIND_NONE, &qAxTypeLibrary) == S_OK)
        return libFile;

    libFile = QString();
    return libFile;
}

qAxLockCount()

unsigned long qAxLockCount

(

)

Definition at line 180 of file qaxserver.cpp.

Referenced by DllCanUnloadNow().

{
    return qAxModuleRef;
}

UpdateRegistry()

HRESULT UpdateRegistry

(

int

bRegister

)

Referenced by DllRegisterServer(), and DllUnregisterServer().

Variable Documentation

qax_hhook

HHOOK qax_hhook = 0

Definition at line 51 of file qaxserverdll.cpp.

Referenced by axs_FilterProc(), QClassFactory::CreateInstanceHelper(), and DllCanUnloadNow().

qax_ownQApp

bool qax_ownQApp = false

Definition at line 50 of file qaxserverdll.cpp.

Referenced by QClassFactory::CreateInstanceHelper(), DllCanUnloadNow(), and qAxFactory().

qAxInstance

HANDLE qAxInstance

Definition at line 65 of file qaxserver.cpp.

Referenced by DllMain().

qAxIsServer

bool qAxIsServer

Definition at line 64 of file qaxserver.cpp.

Referenced by DllMain().

qAxModuleFilename

wchar_t qAxModuleFilename[MAX_PATH]

Definition at line 67 of file qaxserver.cpp.

Referenced by DllMain().

qAxThreadId

uint qAxThreadId = 0

static

Definition at line 61 of file qaxserverdll.cpp.

Referenced by DllCanUnloadNow(), and DllGetClassObject().

qAxTypeLibrary

ITypeLib* qAxTypeLibrary

Definition at line 66 of file qaxserver.cpp.

Referenced by qAxCleanup(), qAxInit(), QVariantToVARIANT(), and UpdateRegistry().