IBrowser Interface

A web browser control that allows loading a web page or a local HTML file, accessing DOM and executing JavaScript on the loaded web page, getting notifications about loading progress, dispatching keyboard and mouse events, etc.

Namespace: DotNetBrowser.Browser
Assembly: DotNetBrowser (in DotNetBrowser.dll) Version: 2.20.0

Syntax

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public interface IBrowser : IDisposable, 
	IAutoDisposable

The IBrowser type exposes the following members.

Properties

	Name	Description
	AllFrames	Gets all the frames on the currently loaded web page.
	Audio	Gets the IAudio instance that allows controlling audio on the loaded web page and receive notifications when audio has been started or stopped playing.
	Capture	Gets the ICapture instance that can be used for listening and handling capture sessions.
	ConvertJsNameHandler	Gets or sets a handler that is used for the JavaScript name converting. Implement this handler to have control of how the names are converted when binding or executing JavaScript.
	CreatePopupHandler	Gets or sets a handler that is used when the browser decides whether a new popup instance can be created or not.
	CreditCards	Gets the ICreditCards instance that can be used for working with credit cards saved in the Chromium credit card store.
	DevTools	Gets the IDevTools instance that allows working with Chromium Developer Tools for this browser.
	Dialogs	Gets the IDialogs instance that can be used for configuring the dialogs that can be shown by browser.
	DragAndDrop	Gets the IDragAndDrop instance that can be used for managing drag&drop operations for the browser.
	Engine	Gets the IEngine instance associated with this browser.
	Favicon	Gets the favicon of the currently loaded web page.
	FocusedFrame	Gets the focused frame on the currently loaded web page.
	FullScreen	Gets the IFullScreen instance that can be used for controlling the browser's fullscreen mode.
	InjectCssHandler	Gets or sets a handler that is used when the document element has been created and a custom stylesheet can be injected into the document.
	InjectJsHandler	Gets or sets a handler that is used when the document element has been created and a custom JavaScript can be injected into the document.
	IsDisposed	Indicates if the object is already disposed. (Inherited from IAutoDisposable.)
	JsDialogs	Gets the IJsDialogs instance that can be used for configuring the JavaScript dialogs that can be shown by browser.
	Keyboard	Gets the IKeyboard instance that can be used for listening and simulating keyboard input events.
	MainFrame	The main frame on the currently loaded web page, if it exists.
	Mouse	Gets the IMouse instance that can be used for listening and simulating mouse input events.
	Navigation	Gets the INavigation instance that can be used for controlling navigation in the current browser instance.
	OpenPopupHandler	Gets or sets a handler that is used when a new popup browser instance should be opened.
	Passwords	Gets the IPasswords instance that can be used for working with logins and passwords saved in the Chromium password store.
	PrintHtmlContentHandler	Gets or sets a handler that is used when the HTML content printing is initiated.
	PrintPdfContentHandler	Gets or sets a handler that is used when the PDF content printing is initiated.
	Profile	Gets the IProfile instance associated with this browser.
	RequestPdfDocumentPasswordHandler	Gets or sets a handler that is used when the frame requests the password for an encrypted PDF document.
	RequestPrintHandler	Gets or sets a handler that is used when the printing is initiated.
	SelectCertificateHandler	Gets or sets a handler that is used when the web server requires authorization via client certificate.
	Settings	Gets the IBrowserSettings instance that can be used for modifying the settings of the browser.
	ShowContextMenuHandler	Gets or sets a handler that is used when the browser should show a context menu.
	Size	Gets or sets the browser size.
	StartDownloadHandler	Gets or sets a handler that is used when the browser is about to start downloading the file.
	TextFinder	Gets the ITextFinder instance that can be used for finding text on a web page loaded in the browser.
	Title	Gets the title of the currently loaded web page.
	Touch	Gets the ITouch instance that can be used for listening touch input events.
	Url	Gets the URL of the currently loaded web page or an empty string if the browser hasn't loaded any web page yet.
	UserAgent	Gets or sets the user-agent of the current browser instance.
	UserDataProfiles	Gets the IUserDataProfiles instance that can be used for working with user data profiles saved in the Chromium user data store.
	Zoom	Gets the IZoom instance that can be used for zooming content of a web page loaded in the current browser instance.

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Methods

	Name	Description
	Dispose	Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources. (Inherited from IDisposable.)
	DisposeAsync	Asynchronously disposes the current browser instance according to the given options.
	Focus	Tells the browser that it has focus and must be activated.
	ReplaceMisspelledWord	Replaces misspelled word under cursor on the currently loaded web page with the given word. If there is no misspelled word under cursor, this method does nothing.
	SaveWebPage	Initiates the saving process of the currently loaded web page. The web page can be saved as a single HTML file or the file with resources. Before saving a web page make sure that it is not being loaded. It is recommended to completely loaded the web page and only then save it.
	SetPrivateKeyProviderPin	Sets the key exchange PIN for the particular cryptographic service provider (CSP) and the particular key container in it. This functionality can be used to set the PIN that is requested when trying to use a client certificate stored on the smart card.
	TakeImage	Creates and returns an image of the currently loaded web page.
	Unfocus	Tells the browser that it does not have focus and must be deactivated.

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Events

	Name	Description
	BrowserBecameResponsive	Occurs when the browser instance has become responsive.
	BrowserBecameUnresponsive	Occurs when the browser instance has become unresponsive.
	ConsoleMessageReceived	Occurs when the message was added to the console.
	Disposed	Occurs when the object has been disposed. (Inherited from IAutoDisposable.)
	FaviconChanged	Occurs when the web page favicon has changed.
	FocusGained	Occurs when the browser instance has gained the focus.
	FocusLost	Occurs when the browser instance has lost the focus.
	FocusRequested	Occurs when JavaScript sends a request to focus the Browser instance by calling the window.focus() method.
	FrameCreated	Occurs when the IFrame has been created.
	FrameDeleted	Occurs when the IFrame has been deleted.
	PrintPreviewClosed	Occurs when print preview dialog is closed.
	PrintPreviewOpened	Occurs when print preview dialog is opened.
	RenderProcessTerminated	Occurs when a render process has been terminated.
	SpellCheckCompleted	Occurs when spell checking on the frame has been completed.
	StatusChanged	Occurs when the status text has been changed.
	TitleChanged	Occurs when the web page title has been changed.
	UpdateBoundsRequested	Occurs when JavaScript requests to update bounds of the Browser instance.

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Remarks

The IBrowser instance itself is running in a separate native process that allocates memory and system resources that must be released. So, when a IBrowser instance is no longer needed, it must be disposed through the Dispose method to release all the allocated memory and system resources. For example:

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IBrowser browser = engine.CreateBrowser();
...
browser.Dispose();

Any attempt to use an already disposed IBrowser instance will lead to the ObjectDisposedException.

The IBrowser instance is disposed automatically when its IEngine is disposed or unexpectedly crashed. If the instance represents a popup window created by JavaScript via the window.open() function, then JavaScript can close the instance using the window.close() function.

To get notifications that the IBrowser instance has been disposed please subscribe to the following event:

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browser.Disposed += (s, e) => {
    // The Browser instance has been disposed.
};

Reference

DotNetBrowser.Browser Namespace