WinRT W8 Create WebView in C++ and add it to the main view

Question

I'm currently trying to display a webview in a WinRT application (without c#). First, is it possible ?

I'm currently trying to do it that way:

Windows::UI::Xaml::Controls::WebView^ webView = ref new Windows::UI::Xaml::Controls::WebView();
webView->NavigateToString("http://www.google.com");

But as I want this code to be run in the main thread (I think, to create a UI element it's compulsory) I'm running it like that:

Windows::ApplicationModel::Core::CoreApplication::MainView->CoreWindow->GetForCurrentThread()->Dispatcher->RunAsync(Windows::UI::Core::CoreDispatcherPriority::Normal, ref new Windows::UI::Core::DispatchedHandler(
    []
    {
        Windows::UI::Xaml::Controls::WebView^ webView = ref new Windows::UI::Xaml::Controls::WebView();
        webView->NavigateToString("http://www.google.com");
    }
));

Bad point is that this line:

webView->NavigateToString("http://www.google.com");

Is never reached. In the output console I have three exceptions raised (while debugging step by step) at that line:

Windows::UI::Xaml::Controls::WebView^ webView = ref new Windows::UI::Xaml::Controls::WebView();

The exceptions raised are the following:

First-chance exception at 0x763B4B32 in Direct3DApp1.exe: Microsoft C++ exception: Platform::WrongThreadException ^ at memory location 0x0320EFE4. HRESULT:0x8001010E
First-chance exception at 0x763B4B32 in Direct3DApp1.exe: Microsoft C++ exception: Platform::WrongThreadException ^ at memory location 0x0320EFE4. HRESULT:0x8001010E
First-chance exception at 0x763B4B32 (KernelBase.dll) in Direct3DApp1.exe: 0x40080201: WinRT originate error (parameters: 0x8001010E, 0x00000051, 0x0320E494).

If you have any idea how to create a webview and display it in a C++ only application on Windows 8 (not Windows Phone 8), it would be great. Meanwhile I'm strongly thinking about integrating webkit in my application if it could help me to display a webkit webview in C++ only.

Thx

Answer 1

The first thing that jumps out is that you're not adding the WebView to your visual tree. After creating it you need to add it to a container on your page. See http://msdn.microsoft.com/en-us/library/windows/apps/hh825871.aspx for more on using Xaml in a D3D app.

Beyond that your code looks superficially correct.

--Rob

Answer 2

Hello,

Thx for your insight, but my main probleme is that it crash in that line:

 Windows::UI::Xaml::Controls::WebView^ webView = ref new Windows::UI::Xaml::Controls::WebView();

Which prevent me for going any further and add it in the treeview.

:s