Hi everyone
After uninstalling Safari and starting to explicitly loading the webkit.dll
file I get a weird error when loading a URL request. Incidentally I get the
same error the exact same place when I try to run the WinLauncher.exe
application (which is part of the Windows port of WebKit).
(NOTE: error handling code and other clutter is removed from the following
source)
First I load the DLL and gets a function pointer to the DllGetClassObject
method (DllRegisterServer does nothing so registering the dll with RegSvr32.exe
yields an error):
hmodWebKit = LoadLibrary(TEXT("WebKit.dll"));
if (hmodWebKit)
dllGetClassObject =
(DLLGETCLASSOBJECTFARPROC)GetProcAddress(hmodWebKit, "DllGetClassObject");
if(!dllGetClassObject)
return false;
Then I get the class factory for a WebView, and instructs it to create an
instance:
IClassFactory* pClsFactory;
if(FAILED(dllGetClassObject(CLSID_WebView, IID_IClassFactory,
(void**)&pClsFactory)))
return false;
IWebView* pWebView;
classFactory->CreateInstance(NULL, IID_IWebView,
(void**)&pWebView);
Now for the part where I will load a URL. I start by getting the main frame:
IWebFrame* frame;
webView->mainFrame(&frame);
Then I create a class factory for a mutable web request and instructs that
factory to create a request for me:
IWebMutableURLRequest* request;
IClassFactory* pClsFct;
dllGetClassObject(CLSID_WebMutableURLRequest, IID_IClassFactory,
(void**)&pClsFct);
pClsFct->CreateInstance(NULL, IID_IWebMutableURLRequest,
(void**)&request);
I initialize the request like this:
request->initWithURL(bstrUrl,WebURLRequestUseProtocolCachePolicy,60);
But when I instruct the frame to load the request, like this:
frame->loadRequest(request);
I get an acces violation exception saying:
"Unhandled exception at 0x655452d5 in <app.name>.exe: 0xC0000005:
Access violation reading location 0x00000070."
The application breaks in StringImplCF.cpp, in the method "CFStringRef
StringImpl::createCFString()" at this line:
CFStringRef string = CFStringCreateWithCharactersNoCopy(allocator,
reinterpret_cast<const UniChar*>(m_data), m_length, kCFAllocatorNull);
As previously mentioned it is the same error that I get when trying to run
WinLauncher.exe. Does anyone know what the problem is?
Best regards,
Frank
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