interface ICoreWebView2_12

Artigo
11/18/2024

interface ICoreWebView2_12
  : public ICoreWebView2_11

This interface is an extension of ICoreWebView2_11 that supports StatusBarTextChanged event.

Summary

Members	Descriptions
add_StatusBarTextChanged	Add an event handler for the `StatusBarTextChanged` event.
get_StatusBarText	The status message text.
remove_StatusBarTextChanged	Remove an event handler previously added with `add_StatusBarTextChanged`.

Applies to

Product	Introduced
WebView2 Win32	1.0.1185.39
WebView2 Win32 Prerelease	1.0.1189

Members

add_StatusBarTextChanged

Add an event handler for the StatusBarTextChanged event.

public HRESULT add_StatusBarTextChanged(ICoreWebView2StatusBarTextChangedEventHandler * eventHandler, EventRegistrationToken * token)

StatusBarTextChanged fires when the WebView is showing a status message, a URL, or an empty string (an indication to hide the status bar).

        m_statusBar.Initialize(appWindow);
        // Registering a listener for status bar message changes
        CHECK_FAILURE(m_webView2_12->add_StatusBarTextChanged(
            Microsoft::WRL::Callback<ICoreWebView2StatusBarTextChangedEventHandler>(
                [this](ICoreWebView2* sender, IUnknown* args) -> HRESULT
                {
                    if (m_customStatusBar)
                    {
                        wil::unique_cotaskmem_string value;
                        Microsoft::WRL::ComPtr<ICoreWebView2_12> wv;
                        CHECK_FAILURE(sender->QueryInterface(IID_PPV_ARGS(&wv)));

                        CHECK_FAILURE(wv->get_StatusBarText(&value));
                        std::wstring valueString = value.get();
                        if (valueString.length() != 0)
                        {
                            m_statusBar.Show(valueString);
                        }
                        else
                        {
                            m_statusBar.Hide();
                        }
                    }

                    return S_OK;
                })
                .Get(),
            &m_statusBarTextChangedToken));

get_StatusBarText

The status message text.

public HRESULT get_StatusBarText(LPWSTR * value)

The caller must free the returned string with CoTaskMemFree. See API Conventions.

remove_StatusBarTextChanged

Remove an event handler previously added with add_StatusBarTextChanged.

public HRESULT remove_StatusBarTextChanged(EventRegistrationToken token)

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