Why do IWebBrowser2::Navigate2 return E_FAIL?

Johann Gerell

Couldn't get any input from the "Mobile Development" board, so now I turn to the COM giants here :rolleyes: The docs on this are sparse, to say the least... My problem: I'm trying to embed a WebBrowser object in a Windows Mobile application. I can create it and query its size and window handle, but IWebBrowser2::Navigate2 fails with E_FAIL. Can anyone give me any hints to why it fails? Code (yes, C++): My host control is declared like this:

class HtmlControl : public Window // Window wraps an HWND.
{
public:
HtmlControl(HWND window)
: Window(window)
, iOleObject_(NULL)
{
iOleSite_.host = this;
iOleFrame_.host = this;
CreateWebControl();
}

Site iOleSite\_;
Frame iOleFrame\_;
IOleObject\* iOleObject\_;              // The WeBrowser object.

private:
void CreateWebControl();
};

Where Site and Frame are declared like this:

struct Site : public IOleClientSite,
public IOleInPlaceSite
{
HtmlControl* host;

// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void\*\* ppvObject);
STDMETHODIMP\_(ULONG) AddRef();
STDMETHODIMP\_(ULONG) Release();

// IOleClientSite
STDMETHODIMP SaveObject();
STDMETHODIMP GetMoniker(DWORD dwAssign, DWORD dwWhichMoniker,
                        IMoniker\*\* ppmk);
STDMETHODIMP GetContainer(LPOLECONTAINER FAR\* ppContainer);
STDMETHODIMP ShowObject();
STDMETHODIMP OnShowWindow(BOOL fShow);
STDMETHODIMP RequestNewObjectLayout();

// IOleWindow
STDMETHODIMP GetWindow(HWND FAR\* lphwnd);
STDMETHODIMP ContextSensitiveHelp(BOOL fEnterMode);

// IOleInPlaceSite methods
STDMETHODIMP CanInPlaceActivate();
STDMETHODIMP OnInPlaceActivate();
STDMETHODIMP OnUIActivate();
STDMETHODIMP GetWindowContext(LPOLEINPLACEFRAME FAR\* lplpFrame,
                              LPOLEINPLACEUIWINDOW FAR\* lplpDoc,
                              LPRECT lprcPosRect,
                              LPRECT lprcClipRect,
                              LPOLEINPLACEFRAMEINFO lpFrameInfo);
STDMETHODIMP Scroll(SIZE scrollExtent);
STDMETHODIMP OnUIDeactivate(BOOL fUndoable);
STDMETHODIMP OnInPlaceDeactivate();
STDMETHODIMP DiscardUndoState();
STDMETHODIMP DeactivateAndUndo();
STDMETHODIMP OnPosRectChange(LPCRECT lprcPosRect);

};

struct Frame : public IOleInPlaceFrame
{
HtmlControl* host;

// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void\*\* ppvObject);
STDMETHODIMP\_(ULONG) AddRef();
STDMETHODIMP\_(ULONG) Release()

Jim Crafton

There's a article here on how to host the web browser via C code and the author does an *EXCELLENT* job of walking you through exactly what has to happen - try and look for that, maybe it will off you hints as to what's missing.

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Jim Crafton

PS if you can't find the article I wrote code for C++ on the desktop (don't know how applicable it is to embedded) that does wrap the web browser: Win32WebBrowserHost.h[^] Maybe that will help a bit?

¡El diablo está en mis pantalones! ¡Mire, mire! Real Mentats use only 100% pure, unfooled around with Sapho Juice(tm)! SELECT * FROM User WHERE Clue > 0 0 rows returned Save an Orange - Use the VCF! VCF Blog