Having a HWND with IWebBrowser2 on it. IWebBrowser2 is new CLSID_WEBBROWSER.
When I navigating to youtube,google and etc, sometimes it shows me Script Error. And I want to disable it. How can I do it?
if (MoneyHWND == NULL) {
if (SUCCEEDED(OleInitialize(NULL)))
{
vector<wchar_t> fn(1000);
GetModuleFileName(0, fn.data(), 1000);
PathStripPath(fn.data());
RKEY k(HKEY_CURRENT_USER, L"SOFTWARE\\Microsoft\\Internet Explorer\\Main\\FeatureControl\\FEATURE_BROWSER_EMULATION");
k[fn.data()] = 11001UL; // Use IE 11
MoneyHWND = CreateDialog(GetModuleHandle(0), MAKEINTRESOURCE(IDD_FORMVIEW1), hWnd, MoneyProc);
pBrowser2 = new WebBrowser(MoneyHWND);
RECT rc;
GetClientRect(MoneyHWND, &rc);
pBrowser2->SetRect(rc);
pBrowser2->Navigate(site);
OleUninitialize();
}
}
IWebBrowser2::Silent:
Sets or gets a value that indicates whether the object can display dialog boxes.
Note, that the property is exposed to C and C++ programs using the following signatures:
HRESULT IWebBrowser2::get_Silent(VARIANT_BOOL *pbSilent);
HRESULT IWebBrowser2::put_Silent(VARIANT_BOOL bSilent);
In other words:
// ...
auto hr{ pBrowser2->put_Silent(VARIANT_TRUE) };
if FAILED(hr)
{
// Handle error
// ...
}
Related
In brief, I explain you my problem. In my application, I've a button to load the browser. When I click on the button, it opens and creates well the webBrowser (white rectangle).
BUT when I try to create the web Browser when I open a window (who contains different components : buttons, edittext,...) of my application through the Event WM_SHOWWINDOW, I don't see my web browser EXCEPTED IF I put in comment all the loop "while" in the constructor EdgeBrowser.
Why ? Can you give me a solution please ? It would be friendly.
I created a class EdgeBrowser with a constructor who receives the handle of my WIN32 component (HWND component). In my constructor, I do something like that :
EdgeBrowser::EdgeBrowser(HWND hwnd)
{
_hwnd = hwnd;
EdgeBrowser::_beginAsyncOperation = true;
this->CreateWebView();
while (EdgeBrowser::_beginAsyncOperation)
{
Sleep(10);
MSG msg;
for (int nmsg = 0; nmsg < 50; ++nmsg)
{
int rc = PeekMessage(&msg, NULL, 0, 0, PM_REMOVE);
if (rc == 0)
{
break;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
}
And in a part of my "CreateWebView" function with the different listeners :
void EdgeBrowser::CreateWebView
{
// other code
HRESULT hr = CreateCoreWebView2EnvironmentWithOptions(nullptr, userDataDir.c_str(),nullptr,Microsoft::WRL::Callback<ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler>(this,&EdgeBrowser::OnCreateCoreWebView2EnvironmentCompletedHandler).Get());
}
HRESULT EdgeBrowser::OnEnvironmentReadyCompletedHandler(HRESULT result, ICoreWebView2Environment* env)
{
HRESULT createBrowserControlsResult = m_uiEnv->CreateCoreWebView2Controller(this->_thisHandler, Microsoft::WRL::Callback<ICoreWebView2CreateCoreWebView2ControllerCompletedHandler>(this,&EdgeBrowser::OnCreateCoreWebView2ControllerCompletedHandler).Get());
HRESULT createBrowserOptionsResult = m_uiEnv->CreateCoreWebView2Controller(this->_thisHandler,Microsoft::WRL::Callback<ICoreWebView2CreateCoreWebView2ControllerCompletedHandler>( this,&EdgeBrowser::OnCreateCoreWebView2ControllerOptionsCompletedHandler).Get());
}
HRESULT EdgeBrowser::OnCreateCoreWebView2ControllerOptionsCompletedHandler(HRESULT result, ICoreWebView2Controller* host)
{
m_optionsController = host;
HRESULT getOptWebViewResult = m_optionsController->get_CoreWebView2(&m_optionsWebView);
//other code
EdgeBrowser::_beginAsyncOperation = false;
return S_OK;
}
The WebView2 control requires a message loop to run on the UI thread on which it is created (see this page for more info on WebView2 threading). You can see the WebView2APISample sample app as a sample C++ Win32 HWND based application.
I'm using the embedded web browser control in my dialog-based MFC window and I need to know the HWND of the web browser control in it. I was able to find the following code that claims to retrieve it:
HWND hWndWebBrowser = NULL;
LPUNKNOWN unknown = m_browser.GetControlUnknown();
IWebBrowser2* pWB = NULL;
if(SUCCEEDED(unknown->QueryInterface(IID_IWebBrowser2,(void **)&pWB)))
{
CComPtr<IServiceProvider> pServiceProvider;
if (SUCCEEDED(pWB->QueryInterface(IID_IServiceProvider, (void**)&pServiceProvider)))
{
CComPtr<IOleWindow> pWindow;
if (SUCCEEDED(pServiceProvider->QueryService(SID_SShellBrowser, IID_IOleWindow, (void**)&pWindow)))
{
SHANDLE_PTR hBrowser = 0;
if (SUCCEEDED(pWindow->GetWindow(&hBrowser)))
{
hWndWebBrowser = (HWND)hBrowser;
}
}
}
}
if(unknown)
{
unknown->Release();
}
but the problem is that when it runs, it returns a handle, but not the one I would expect. The best way to illustrate it is with this Spy++ screenshot:
I understand that I can use EnumChildWindows and look for a window with the Internet Explorer_Server class, but I'm somewhat concerned about using this undocumented class name.
Does anyone have a better way to retrieve that (web browser) window handle?
Per Obtaining the HWND for the WebBrowser control, you can use following function to retrieve HWND.
IOleWindow *pOWin;
HWND hBWnd;
HRESULT hRes = m_pBrowserApp->QueryInterface(IID_IOleWindow, (void **)&pOWin);
if (SUCCEEDED(hRes)) {
hRes = pOWin->GetWindow(&hBWnd);
if (SUCCEEDED(hRes)) {
// Place hBWnd-manipulating code here
}
pOWin->Release(); // Missing from the MS example
}
Because the class names (Shell DocObject View and Internet Explorer_Server) could change, the above code should be preferred, although it is unlikely given the fact that Internet Explorer is now discontinued.
The lexical of the question is a little tricky.
The HWND of the (Web Browser) is indeed the answer
that you posted and the answer posted by Santosh Dhanawade.
When a document is loaded, the web browser control creates a
new window or iframe, see the DWebBrowserEvents2::DocumentComplete event.
Event handler parameters:
" pDisp [in] "
A pointer to the IDispatch interface of the window or frame in which the document is loaded. This IDispatch interface can be queried for the IWebBrowser2 interface.
so, changing the question:
"Does anyone have a better way to retrieve that (web browser) window handle?"
to:
"Does anyone have a better way to retrieve that (window or iframe) window handle?"
we have that the window or iframe HWND that you are locking for,
will be abailable after that the document has been completed loaded.
Which means that we can do the follow:
Implement a DocumentComplete event handler throw a raw c or c++ implementation of
IDispatch or an ATL DispEventImpl or ATL DispEventSimpleImpl.
See Understanding COM Event Handling.
Sink our event handler into the the web browser control to get the events report.
And get the window or iframe HWND from the DocumentComplete event:
assuming a raw c++ IDispatch implementation:
IFACEMETHODIMP DWebBrowserEvents2Impl::Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS * pDispParams, VARIANT * pVarResult, EXCEPINFO * pExcepInfo, UINT * puArgErr)
{
if (dispIdMember == DISPID_DOCUMENTCOMPLETE) {
VARIANT variantDispatch;
VariantInit(&variantDispatch);
HRESULT hr = DispGetParam(pDispParams, 0, VT_DISPATCH, &variantDispatch, NULL);
if (SUCCEEDED(hr)) {
IOleWindow* iOleWindow;
hr = variantDispatch.pdispVal->QueryInterface(IID_IOleWindow, (LPVOID*) &iOleWindow);
if (SUCCEEDED(hr)) {
HWND hwnd;
hr = iOleWindow->GetWindow(&hwnd);
iOleWindow->Release();
if (SUCCEEED(hr)){
//now the hwnd correponds to the Internet Explorer_Server window.
//Do what ever you want with the HWND handler.
}
}
}
return S_OK;
}
return E_NOTIMPL;
}
From my experience, the window we're looking for is a direct descendance of the CHtmlView derived CWnd, so I use this hack to get the window and set the focus to it:
static CWnd* findChildWebbrowser(CWnd* pWnd) {
if(pWnd == NULL) { return NULL; }
CWnd* pC = pWnd->GetWindow(GW_CHILD);
if(pC == NULL) { return NULL; };
CString buf;
::GetClassName(pC->GetSafeHwnd(), buf.GetBuffer(2048), 2047);
buf.ReleaseBuffer();
if(buf == _T("Internet Explorer_Server")) {
return pC;
}
return findChildWebbrowser(pC);
}
void CMyWebView::OnSetFocus(CWnd* pOldWnd) {
// CHtmlView::OnSetFocus(pOldWnd);
CWnd* pIE = findChildWebbrowser(this);
if(pIE!=NULL) {
// this makes cursor/page keys work
pIE->SetFocus();
// this makes the TAB key work
pIE->SendMessage(WM_LBUTTONDOWN);
pIE->SendMessage(WM_LBUTTONUP);
}
}
I'm trying to manipulate a specific Internet Explorer 11 window. Using WinSpy++ I find that
The top level window's class is an IEFrame with the title of the document as the text (as returned by GetWindowText)
The actual web view class is called "Internet Explorer_Server" and is a child of the former.
I wrote a simple test case for finding the web view of IE11 opened on "https://encrypted.google.com/" in three different ways:
HWND FindIE_A()
{
// Use FindWindow, works!
HWND hWndTop = ::FindWindowA( NULL, "Google - Internet Explorer" );
// Find the web view window, the callback (FindIEServer) is NEVER called!
HWND hWnd = NULL;
::EnumChildWindows( hWndTop, &FindIEServer, (LPARAM)&hWnd );
return hWnd;
}
HWND FindIE_B()
{
// Use EnumChildWindows with NULL as parent, works!
HWND hWndTop = NULL;
::EnumChildWindows( NULL, &FindIEMain, (LPARAM)&hWndTop );
// Find the web view window, the callback (FindIEServer) is NEVER called!
HWND hWnd = NULL;
::EnumChildWindows( hWndTop, &FindIEServer, (LPARAM)&hWnd );
return hWnd;
}
HWND FindIE_C()
{
// Simple EnumWindows, works!
HWND hWndTop = NULL;
::EnumWindows( &FindIEMain, (LPARAM)&hWndTop );
// Find the web view window, the callback (FindIEServer) is NEVER called!
HWND hWnd = NULL;
::EnumChildWindows( hWndTop, &FindIEServer, (LPARAM)&hWnd );
return hWnd;
}
The callbacks that are very simple; get a property from the window and compare against a hard-coded value:
BOOL CALLBACK FindIEServer( HWND hWnd, LPARAM lParam )
{
char className[64];
::GetClassNameA( hWnd, className, sizeof(className) );
if ( !strcmp( className, "Internet Explorer_Server" ) )
{
*(HWND*)lParam = hWnd;
return FALSE;
}
return TRUE;
}
BOOL CALLBACK FindIEMain( HWND hWnd, LPARAM lParam )
{
char text[128];
::GetWindowTextA( hWnd, text, sizeof(text) );
if ( !strcmp( text, "Google - Internet Explorer" ) )
{
*(HWND*)lParam = hWnd;
return FALSE;
}
return TRUE;
}
EnumChildWindows failed (by not calling the callback AT ALL!) every time when provided with a parent window. Why?
The problem is that when I look for the window title, I was assuming there was only one window with that title. However Internet Explorer does some shenanigans and creates multiple windows with the same title however only one of them has the class IEFrame.
It just so happens that the first window found was the wrong one, it didn't have any children (and thus EnumChildWindows doesn't have anything to iterate over). Just adding an extra check for title + class works.
However as #wakjah suggested, it is better integrate IE (or any other browser) directly into your code. With google I found lots of documentation on how to do this with both IE and Chrome.
im trying to build a new window using the following class.
however im having some serious problems while trying to get the new generated window's name using the CWindow::m_hwnd variable. my guess is that i should pass a variable to the CWindowImpl::Create() function that holds my parent's HWND but i dont know how to get it.
STDMETHODIMP CVMNExporter::SetSite(IUnknown *pUnkSite) {
HRESULT hr;
if(FAILED(hr = ATL::IObjectWithSiteImpl<CVMNExporter>::SetSite(pUnkSite)))
return hr;
// We are rnning from a web browser
CONNECTION_CALLBACK = JSCRIPT_DISPID;
EXPORTING_CALLBACK = JSCRIPT_DISPID;
MERGING_CALLBACK = JSCRIPT_DISPID;
ABORTING_CALLBACK = JSCRIPT_DISPID;
AddRef();
if(NULL == Create(0)) {// Creates the hidden window
Release();
return HRESULT_FROM_WIN32(GetLastError());
}
ATLTRACE("TEST - SetSite(): this: %d, window: %d", this, m_hWnd);
m_dwApartmentMode = HWND_APARTMENT;
SendMessage(WM_EXPORTER_APARTMENT_SETUP, 0, 0);
return S_OK; }
CVMNExporter implements the following interfaces:
public ATL::IObjectSafetyImpl<CVMNExporter, INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA>,
public ATL::IObjectWithSiteImpl<CVMNExporter>,
public ATL::CWindowImpl<CVMNExporter, ATL::CWindow, ATL::CFrameWinTraits>,
thanks!
Well it took me some time, but managed to solve it by using GetActiveWindow()
I'm facing some weird (at least for me) behavior on using the Common Item Dialogs in my MFC Windows application running on Windows 7 or Vista.
According to the MSDN http://msdn.microsoft.com/en-us/library/windows/desktop/bb776913(v=vs.85).aspx I'm using the new interfaces to display file open and save dialogs:
bool OpenFileDialog(CString& strFile, CString strTitle, CStringArray& astrFilter, CStringArray& astrFilterExtension, ULONG nFlags, HWND hParentWnd)
{
USES_CONVERSION;
INT_PTR nResult = 0;
INT_PTR nFilterCount = astrFilter.GetCount();
IFileDialog* pfod = 0;
HRESULT hr = ::CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pfod));
if(SUCCEEDED(hr))
{
// New dialog starting with Vista/Windows 7
COMDLG_FILTERSPEC* pOpenTypes = 0;
if((nFilterCount > 0) && (nFilterCount == astrFilterExtension.GetCount()))
{
pOpenTypes = new COMDLG_FILTERSPEC[nFilterCount];
for(int nIdx = 0; nIdx < nFilterCount; nIdx++)
{
pOpenTypes[nIdx].pszName = astrFilter[nIdx].GetBuffer();
pOpenTypes[nIdx].pszSpec = astrFilterExtension[nIdx].GetBuffer();
}
}
// Set the file types to display.
if(pOpenTypes)
{
hr = pfod->SetFileTypes(nFilterCount, pOpenTypes);
if(SUCCEEDED(hr))
hr = pfod->SetFileTypeIndex(0);
}
if(!strFile.IsEmpty())
pfod->SetFileName(strFile);
if(!strTitle.IsEmpty())
pfod->SetTitle(strTitle);
if(SUCCEEDED(hr))
{
// Ensure the dialog only returns file system paths.
DWORD dwFlags;
hr = pfod->GetOptions(&dwFlags);
if(SUCCEEDED(hr))
{
dwFlags |= FOS_FORCEFILESYSTEM;
if(nFlags & OFN_FILEMUSTEXIST)
dwFlags |= FOS_FILEMUSTEXIST;
if(nFlags & OFN_PATHMUSTEXIST)
dwFlags |= FOS_PATHMUSTEXIST;
hr = pfod->SetOptions(dwFlags);
if(SUCCEEDED(hr))
{
// Create an event handling object, and hook it up to the dialog.
IFileDialogEvents* pfde = NULL;
DWORD dwCookie;
// Actually only added for debugging purposes
/*hr = CDialogEventHandler_CreateInstance(IID_PPV_ARGS(&pfde));
if(SUCCEEDED(hr))
{
// Hook up the event handler.
hr = pfod->Advise(pfde, &dwCookie);
if(!SUCCEEDED(hr))
{
pfde->Release();
pfde = 0;
}
}*/
// Now show the dialog. Usually called with hParent == 0
if(hParentWnd)
hr = pfod->Show(::GetWindow(hParentWnd, GW_OWNER));
else
hr = pfod->Show(0);
// do something with the path when the dialog was closed...
So the dialog appears and works fine if I want to select a file from a normal drive. I can navigate through the folders and select any file I want. On leaving the dialog I also get the correct file information.
But it doesn't work for one of the Libraries in the navigation pane on the left side. Whenever I try to select a Library like Documents, Videos or Pictures the dialog doesn't update the right pane which shows the folder/library content.
What I noticed is that on clicking a Library in the file open/save dialog the OnFolderChanging() event of the IFileDialogEvents interface is fired but the OnFolderChange() and OnSelectionChange() are not. Those events are fired if I click and navigate on a "normal" drive like C.
I also tried to call the dialogs early in my InitInstance method to avoid possible side-effects with my other code but this didn't help either.
Is there someone who had the same behavior and was able to resolve this?
Thanks a lot!
So I finally found the answer to this issue. Creating the new MFC project for the application was the actual hint to solve this. The reason was that the "Stack reserve size" was too big. The settings in the old VS6.0 project had the stack size increased to more than 100MB. Apparently the IFileDialog based dialogs do not work properly when the reserved stack size is simply too large (other thing might don't work also as expected). So I had to set it back to 15MB in my case.