How to instantiate the IWebViewControl in MFC or C++? - c++

Question

Recently Microsoft has introduced IWebViewControl for WPF and winforms.
IWebViewControl uses the Edge rendering engine.
It is very easy to instantiate the IWebViewControl using the class constructor but I am not sure how to instantiate the IWebViewControl in MFC or C++.
https://learn.microsoft.com/en-us/microsoft-edge/hosting/webview

Answer 1

Here is IWebViewControl example in C++:
https://github.com/rjmurillo/webview-samples/tree/master/WinMD/Win32/WebViewSamples.Win32
Excerpt from the code:
void CheckFailure(_In_ HRESULT hr)
{
if (FAILED(hr))
{
WCHAR message[512] = L"";
StringCchPrintf(message, ARRAYSIZE(message), L"Error: 0x%x", hr);
MessageBoxW(nullptr, message, nullptr, MB_OK);
ExitProcess(-1);
}
}
template <typename TInterface>
Microsoft::WRL::ComPtr<TInterface> GetActivationFactoryFailFast(_In_z_ PCWSTR factoryClassName)
{
ComPtr<TInterface> factoryInstance;
CheckFailure(RoGetActivationFactory(
HStringReference(factoryClassName).Get(),
IID_PPV_ARGS(&factoryInstance)));
return factoryInstance;
}
template <typename TInterface>
Microsoft::WRL::ComPtr<TInterface> ActivateInstanceFailFast(_In_z_ PCWSTR className)
{
ComPtr<TInterface> classInstanceAsInspectable;
ComPtr<TInterface> classInstance;
CheckFailure(RoActivateInstance(
HStringReference(className).Get(),
&classInstanceAsInspectable));
CheckFailure(classInstanceAsInspectable.As(&classInstance));
return classInstance;
}
ComPtr<IUriRuntimeClass> CreateWinRtUri(_In_z_ PCWSTR uri, _In_ bool allowInvalidUri = false)
{
auto uriRuntimeClassFactory = GetActivationFactoryFailFast<IUriRuntimeClassFactory>(RuntimeClass_Windows_Foundation_Uri);
ComPtr<IUriRuntimeClass> uriRuntimeClass;
if (!allowInvalidUri)
{
CheckFailure(uriRuntimeClassFactory->CreateUri(HStringReference(uri).Get(), &uriRuntimeClass));
}
else
{
uriRuntimeClassFactory->CreateUri(HStringReference(uri).Get(), &uriRuntimeClass);
}
return uriRuntimeClass;
}
m_processOptions = ActivateInstanceFailFast<IWebViewControlProcessOptions>(RuntimeClass_Windows_Web_UI_Interop_WebViewControlProcessOptions);
ComPtr<IWebViewControlProcessFactory> webViewControlProcessFactory = GetActivationFactoryFailFast<IWebViewControlProcessFactory>(RuntimeClass_Windows_Web_UI_Interop_WebViewControlProcess);
CheckFailure(webViewControlProcessFactory->CreateWithOptions(m_processOptions.Get(), &m_process));
ComPtr<IAsyncOperation<WebViewControl*>> createWebViewAsyncOperation;
CheckFailure(m_process->CreateWebViewControlAsync(reinterpret_cast<INT64>(m_hostWindow), HwndWindowRectToBoundsRect(m_hostWindow), &createWebViewAsyncOperation));
HRESULT hr = createWebViewAsyncOperation->put_Completed(Callback<IAsyncOperationCompletedHandler<WebViewControl*>>([this, createWebViewAsyncOperation](IAsyncOperation<WebViewControl*>*, AsyncStatus status) -> HRESULT
{
CheckFailure(createWebViewAsyncOperation->GetResults(&m_webViewControl));
NavigateToUri(L"https://www.bing.com/");
return S_OK;
}).Get());
CheckFailure(hr);

Answer 2

I don't know if this is an answer as such and will remove it on request. MBut Microsoft now have a WebView2 in beta and it has a Win32 variant:
https://learn.microsoft.com/en-us/microsoft-edge/webview2/gettingstarted/win32
Since MFC is a Win32/Win64 app is it not possible to use this SDK?