interface ICoreWebView2Experimental26
Note
This an experimental API that is shipped with our prerelease SDK. See WebView2 release notes.
interface ICoreWebView2Experimental26
: public IUnknown
This interface is an extension of ICoreWebView2 that supports the ScreenCaptureStarting event.
Summary
Members | Descriptions |
---|---|
add_ScreenCaptureStarting | Adds an event handler for the ScreenCaptureStarting event. |
remove_ScreenCaptureStarting | Removes an event handler previously added with add_ScreenCaptureStarting . |
Applies to
Product | Introduced |
---|---|
WebView2 Win32 | N/A |
WebView2 Win32 Prerelease |
Members
add_ScreenCaptureStarting
Adds an event handler for the ScreenCaptureStarting
event.
public HRESULT add_ScreenCaptureStarting(ICoreWebView2ExperimentalScreenCaptureStartingEventHandler * eventHandler, EventRegistrationToken * token)
Add an event handler for the ScreenCaptureStarting
event. ScreenCaptureStarting
event is raised when the Screen Capture API is requested by the user using getDisplayMedia().
m_webViewExperimental26 = m_webView.try_query<ICoreWebView2Experimental26>();
if (m_webViewExperimental26)
{
m_webViewExperimental26->add_ScreenCaptureStarting(
Callback<ICoreWebView2ExperimentalScreenCaptureStartingEventHandler>(
[this](
ICoreWebView2* sender,
ICoreWebView2ExperimentalScreenCaptureStartingEventArgs* args) -> HRESULT
{
// Get Frame Info
wil::com_ptr<ICoreWebView2FrameInfo> frameInfo;
CHECK_FAILURE(args->get_OriginalSourceFrameInfo(&frameInfo));
wil::com_ptr<ICoreWebView2FrameInfo2> frameInfo2;
CHECK_FAILURE(frameInfo->QueryInterface(IID_PPV_ARGS(&frameInfo2)));
UINT32 source_frameId;
CHECK_FAILURE(frameInfo2->get_FrameId(&source_frameId));
BOOL cancel = m_mainFramePermission == FALSE;
CHECK_FAILURE(args->put_Cancel(cancel));
return S_OK;
})
.Get(),
&m_screenCaptureStartingToken);
}
remove_ScreenCaptureStarting
Removes an event handler previously added with add_ScreenCaptureStarting
.
public HRESULT remove_ScreenCaptureStarting(EventRegistrationToken token)
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