interface IWebView2Settings

Artigo
10/14/2020

Note

This reference is no longer being maintained. For the latest API reference, see WebView2 API Reference.

interface IWebView2Settings
  : public IUnknown

Defines properties that enable, disable, or modify WebView features.

Summary

Members	Descriptions
get_IsScriptEnabled	Controls if JavaScript execution is enabled in all future navigations in the WebView.
put_IsScriptEnabled	Set the IsScriptEnabled property.
get_IsWebMessageEnabled	The IsWebMessageEnabled property is used when loading a new HTML document.
put_IsWebMessageEnabled	Set the IsWebMessageEnabled property.
get_AreDefaultScriptDialogsEnabled	AreDefaultScriptDialogsEnabled is used when loading a new HTML document.
put_AreDefaultScriptDialogsEnabled	Set the AreDefaultScriptDialogsEnabled property.
get_IsFullscreenAllowed_deprecated	This setting is deprecated and will always return false.
put_IsFullscreenAllowed_deprecated	This setting is deprecated and will have no effect.
get_IsStatusBarEnabled	IsStatusBarEnabled controls whether the status bar will be displayed.
put_IsStatusBarEnabled	Set the IsStatusBarEnabled property.
get_AreDevToolsEnabled	AreDevToolsEnabled controls whether the user is able to use the context menu or keyboard shortcuts to open the DevTools window.
put_AreDevToolsEnabled	Set the AreDevToolsEnabled property.

Setting changes made after NavigationStarting event will not apply until the next top level navigation.

Members

get_IsScriptEnabled

Controls if JavaScript execution is enabled in all future navigations in the WebView.

public HRESULT get_IsScriptEnabled(BOOL * isScriptEnabled)

This only affects scripts in the document; scripts injected with ExecuteScript will run even if script is disabled. It is true by default.

        // Changes to settings will apply at the next navigation, which includes the
        // navigation after a NavigationStarting event.  We can use this to change
        // settings according to what site we're visiting.
        if (ShouldBlockScriptForUri(uri.get()))
        {
            m_settings->put_IsScriptEnabled(FALSE);
        }
        else
        {
            m_settings->put_IsScriptEnabled(m_isScriptEnabled);
        }

put_IsScriptEnabled

Set the IsScriptEnabled property.

public HRESULT put_IsScriptEnabled(BOOL isScriptEnabled)

get_IsWebMessageEnabled

The IsWebMessageEnabled property is used when loading a new HTML document.

public HRESULT get_IsWebMessageEnabled(BOOL * isWebMessageEnabled)

If set to true, communication from the host to the webview's top level HTML document is allowed via PostWebMessageAsJson, PostWebMessageAsString, and window.chrome.webview's message event (see PostWebMessageAsJson documentation for details). Communication from the webview's top level HTML document to the host is allowed via window.chrome.webview's postMessage function and the SetWebMessageReceivedEventHandler method (see the SetWebMessageReceivedEventHandler documentation for details). If set to false, then communication is disallowed. PostWebMessageAsJson and PostWebMessageAsString will fail with E_ACCESSDENIED and window.chrome.webview.postMessage will fail by throwing an instance of an Error object. It is true by default.

    ComPtr<IWebView2Settings> settings;
    CHECK_FAILURE(m_webView->get_Settings(&settings));

    CHECK_FAILURE(settings->put_IsWebMessageEnabled(TRUE));

put_IsWebMessageEnabled

Set the IsWebMessageEnabled property.

public HRESULT put_IsWebMessageEnabled(BOOL isWebMessageEnabled)

get_AreDefaultScriptDialogsEnabled

AreDefaultScriptDialogsEnabled is used when loading a new HTML document.

public HRESULT get_AreDefaultScriptDialogsEnabled(BOOL * areDefaultScriptDialogsEnabled)

If set to false, then WebView won't render the default javascript dialog box (Specifically those shown by the javascript alert, confirm, and prompt functions). Instead, if an event handler is set by SetScriptDialogOpeningEventHandler, WebView will send an event that will contain all of the information for the dialog and allow the host app to show its own custom UI.

put_AreDefaultScriptDialogsEnabled

Set the AreDefaultScriptDialogsEnabled property.

public HRESULT put_AreDefaultScriptDialogsEnabled(BOOL areDefaultScriptDialogsEnabled)

get_IsFullscreenAllowed_deprecated

This setting is deprecated and will always return false.

public HRESULT get_IsFullscreenAllowed_deprecated(BOOL * isFullscreenAllowed)

That means elements in the WebView will only fill the WebView bounds. This property will then be completely removed. Please listen to the ContainsFullScreenElementChanged event instead.

Controls if fullscreen is allowed for elements in the WebView. When it is allowed, web content such as a video element in the WebView is allowed to be displayed full screen. When it is not allowed, such element will fill the WebView bounds when the element requests full screen. It is true by default.

put_IsFullscreenAllowed_deprecated

This setting is deprecated and will have no effect.

public HRESULT put_IsFullscreenAllowed_deprecated(BOOL isFullscreenAllowed)

Please listen to the ContainsFullScreenElementChanged event instead.

Set the IsFullscreenAllowed property.

get_IsStatusBarEnabled

IsStatusBarEnabled controls whether the status bar will be displayed.

public HRESULT get_IsStatusBarEnabled(BOOL * isStatusBarEnabled)

The status bar is usually displayed in the lower left of the WebView and shows things such as the URI of a link when the user hovers over it and other information. It is true by default.

put_IsStatusBarEnabled

Set the IsStatusBarEnabled property.

public HRESULT put_IsStatusBarEnabled(BOOL isStatusBarEnabled)

get_AreDevToolsEnabled

AreDevToolsEnabled controls whether the user is able to use the context menu or keyboard shortcuts to open the DevTools window.

public HRESULT get_AreDevToolsEnabled(BOOL * areDevToolsEnabled)

It is true by default.

put_AreDevToolsEnabled

Set the AreDevToolsEnabled property.

public HRESULT put_AreDevToolsEnabled(BOOL areDevToolsEnabled)

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