ElectronWebContents

Unofficial

Electron WebContents for rendering and controlling a web page.

Note: the upstream static factories (fromId, fromDevToolsTargetId, getAllWebContents, getFocusedWebContents) cannot be expressed on a plain interface and are therefore omitted here.

Import:

import type { ElectronWebContents } from '@obsidian-typings/obsidian-public-latest';

Signature:

export interface ElectronWebContents

Properties

Property	Type	Description
audioMuted	boolean	Whether this page is muted.
backgroundThrottling	boolean	Whether this web contents throttles animations and timers when the page becomes backgrounded.
debugger	ElectronDebugger	The debugger instance for this web contents.
devToolsWebContents	ElectronWebContents \| null	The DevTools web contents associated with this web contents, or `null` when DevTools is closed.
frameRate	number	The frame rate of the web contents. Only applicable when offscreen rendering is enabled.
hostWebContents	ElectronWebContents	The web contents that might own this web contents.
id	number	The unique id of this web contents.
mainFrame	ElectronWebFrameMain	The top frame of the page's frame hierarchy.
session	Session	The session used by this web contents.
userAgent	string	The user agent for this web page.
zoomFactor	number	The zoom factor for this web contents. The zoom factor is the zoom percent divided by 100.
zoomLevel	number	The zoom level for this web contents.

Methods

Method	Returns	Description
addListener(event, listener)	this	Registers a listener for the `before-input-event` event.
addListener(event, listener)	this	Registers a listener for the `blur` event.
addListener(event, listener)	this	Registers a listener for the `certificate-error` event.
addListener(event, listener)	this	Registers a listener for the `console-message` event.
addListener(event, listener)	this	Registers a listener for the `context-menu` event.
addListener(event, listener)	this	Registers a listener for the `crashed` event.
addListener(event, listener)	this	Registers a listener for the `cursor-changed` event.
addListener(event, listener)	this	Registers a listener for the `destroyed` event.
addListener(event, listener)	this	Registers a listener for the `devtools-closed` event.
addListener(event, listener)	this	Registers a listener for the `devtools-focused` event.
addListener(event, listener)	this	Registers a listener for the `devtools-opened` event.
addListener(event, listener)	this	Registers a listener for the `devtools-reload-page` event.
addListener(event, listener)	this	Registers a listener for the `did-attach-webview` event.
addListener(event, listener)	this	Registers a listener for the `did-change-theme-color` event.
addListener(event, listener)	this	Registers a listener for the `did-create-window` event.
addListener(event, listener)	this	Registers a listener for the `did-fail-load` event.
addListener(event, listener)	this	Registers a listener for the `did-fail-provisional-load` event.
addListener(event, listener)	this	Registers a listener for the `did-finish-load` event.
addListener(event, listener)	this	Registers a listener for the `did-frame-finish-load` event.
addListener(event, listener)	this	Registers a listener for the `did-frame-navigate` event.
addListener(event, listener)	this	Registers a listener for the `did-navigate` event.
addListener(event, listener)	this	Registers a listener for the `did-navigate-in-page` event.
addListener(event, listener)	this	Registers a listener for the `did-redirect-navigation` event.
addListener(event, listener)	this	Registers a listener for the `did-start-loading` event.
addListener(event, listener)	this	Registers a listener for the `did-start-navigation` event.
addListener(event, listener)	this	Registers a listener for the `did-stop-loading` event.
addListener(event, listener)	this	Registers a listener for the `dom-ready` event.
addListener(event, listener)	this	Registers a listener for the `enter-html-full-screen` event.
addListener(event, listener)	this	Registers a listener for the `focus` event.
addListener(event, listener)	this	Registers a listener for the `found-in-page` event.
addListener(event, listener)	this	Registers a listener for the `frame-created` event.
addListener(event, listener)	this	Registers a listener for the `ipc-message` event.
addListener(event, listener)	this	Registers a listener for the `ipc-message-sync` event.
addListener(event, listener)	this	Registers a listener for the `leave-html-full-screen` event.
addListener(event, listener)	this	Registers a listener for the `login` event.
addListener(event, listener)	this	Registers a listener for the `media-paused` event.
addListener(event, listener)	this	Registers a listener for the `media-started-playing` event.
addListener(event, listener)	this	Registers a listener for the `new-window` event.
addListener(event, listener)	this	Registers a listener for the `page-favicon-updated` event.
addListener(event, listener)	this	Registers a listener for the `page-title-updated` event.
addListener(event, listener)	this	Registers a listener for the `paint` event.
addListener(event, listener)	this	Registers a listener for the `plugin-crashed` event.
addListener(event, listener)	this	Registers a listener for the `preferred-size-changed` event.
addListener(event, listener)	this	Registers a listener for the `preload-error` event.
addListener(event, listener)	this	Registers a listener for the `render-process-gone` event.
addListener(event, listener)	this	Registers a listener for the `responsive` event.
addListener(event, listener)	this	Registers a listener for the `select-bluetooth-device` event.
addListener(event, listener)	this	Registers a listener for the `select-client-certificate` event.
addListener(event, listener)	this	Registers a listener for the `unresponsive` event.
addListener(event, listener)	this	Registers a listener for the `update-target-url` event.
addListener(event, listener)	this	Registers a listener for the `will-attach-webview` event.
addListener(event, listener)	this	Registers a listener for the `will-navigate` event.
addListener(event, listener)	this	Registers a listener for the `will-prevent-unload` event.
addListener(event, listener)	this	Registers a listener for the `will-redirect` event.
addListener(event, listener)	this	Registers a listener for the `zoom-changed` event.
addWorkSpace(path)	void	Adds the specified path to the DevTools workspace.
beginFrameSubscription(onlyDirty, callback)	void	Begins subscribing for presentation events and captured frames.
beginFrameSubscription(callback)	void	Begins subscribing for presentation events and captured frames.
canGoBack()	boolean	Returns whether the browser can go back to the previous web page.
canGoForward()	boolean	Returns whether the browser can go forward to the next web page.
canGoToOffset(offset)	boolean	Returns whether the web page can go to the given offset.
capturePage(rect?)	Promise<ElectronNativeImage>	Captures a snapshot of the page within `rect`. Omitting `rect` captures the whole visible page.
clearHistory()	void	Clears the navigation history.
closeDevTools()	void	Closes the developer tools.
copy()	void	Executes the editing command `copy` in the web page.
copyImageAt(x, y)	void	Copies the image at the given position to the clipboard.
cut()	void	Executes the editing command `cut` in the web page.
decrementCapturerCount(stayHidden?, stayAwake?)	void	Decreases the capturer count by one.
delete()	void	Executes the editing command `delete` in the web page.
disableDeviceEmulation()	void	Disables device emulation enabled by `enableDeviceEmulation`.
downloadURL(url)	void	Initiates a download of the resource at `url` without navigating.
enableDeviceEmulation(parameters)	void	Enables device emulation with the given parameters.
endFrameSubscription()	void	Ends subscribing for frame presentation events.
executeJavaScript(code, userGesture?)	Promise<unknown>	Evaluates `code` in the page.
executeJavaScriptInIsolatedWorld(worldId, scripts, userGesture?)	Promise<unknown>	Works like `executeJavaScript` but evaluates `scripts` in an isolated context.
findInPage(text, options?)	number	Starts a request to find all matches for `text` in the web page.
focus()	void	Focuses the web page.
forcefullyCrashRenderer()	void	Forcefully terminates the renderer process currently hosting this web contents.
getAllSharedWorkers()	ElectronSharedWorkerInfo[]	Returns information about all shared workers.
getBackgroundThrottling()	boolean	Returns whether this web contents throttles animations and timers when backgrounded.
getFrameRate()	number	Returns the current frame rate when offscreen rendering is enabled.
getMediaSourceId(requestWebContents)	string	Returns the identifier of a web contents stream.
getOSProcessId()	number	Returns the operating system `pid` of the associated renderer process.
getPrinters()	ElectronPrinterInfo[]	Returns the system printer list.
getPrintersAsync()	Promise<ElectronPrinterInfo[]>	Returns the system printer list.
getProcessId()	number	Returns the Chromium internal `pid` of the associated renderer.
getTitle()	string	Returns the title of the current web page.
getType()	'backgroundPage' \| 'browserView' \| 'offscreen' \| 'remote' \| 'webview' \| 'window'	Returns the type of the web contents.
getURL()	string	Returns the URL of the current web page.
getUserAgent()	string	Returns the user agent for this web page.
getWebRTCIPHandlingPolicy()	string	Returns the WebRTC IP handling policy.
getZoomFactor()	number	Returns the current zoom factor.
getZoomLevel()	number	Returns the current zoom level.
goBack()	void	Makes the browser go back a web page.
goForward()	void	Makes the browser go forward a web page.
goToIndex(index)	void	Navigates the browser to the specified absolute web page index.
goToOffset(offset)	void	Navigates to the specified offset from the current entry.
incrementCapturerCount(size?, stayHidden?, stayAwake?)	void	Increases the capturer count by one.
insertCSS(css, options?)	Promise<string>	Injects CSS into the current web page and returns a unique key for the inserted stylesheet.
insertText(text)	Promise<void>	Inserts `text` into the focused element.
inspectElement(x, y)	void	Starts inspecting the element at the given position.
inspectServiceWorker()	void	Opens the developer tools for the service worker context.
inspectSharedWorker()	void	Opens the developer tools for the shared worker context.
inspectSharedWorkerById(workerId)	void	Inspects the shared worker based on its id.
invalidate()	void	Schedules a full repaint of the window this web contents is in.
isAudioMuted()	boolean	Returns whether this page has been muted.
isBeingCaptured()	boolean	Returns whether this page is being captured.
isCrashed()	boolean	Returns whether the renderer process has crashed.
isCurrentlyAudible()	boolean	Returns whether audio is currently playing.
isDestroyed()	boolean	Returns whether the web page is destroyed.
isDevToolsFocused()	boolean	Returns whether the DevTools view is focused.
isDevToolsOpened()	boolean	Returns whether the DevTools is opened.
isFocused()	boolean	Returns whether the web page is focused.
isLoading()	boolean	Returns whether the web page is still loading resources.
isLoadingMainFrame()	boolean	Returns whether the main frame is still loading.
isOffscreen()	boolean	Returns whether offscreen rendering is enabled.
isPainting()	boolean	Returns whether it is currently painting when offscreen rendering is enabled.
isWaitingForResponse()	boolean	Returns whether the web page is waiting for a first response from the main resource.
loadFile(filePath, options?)	Promise<void>	Loads the given file in the window.
loadURL(url, options?)	Promise<void>	Loads the `url` in the window.
on('before-input-event', listener)	this	Registers a listener for the `before-input-event` event.
on('blur', listener)	this	Registers a listener for the `blur` event.
on('certificate-error', listener)	this	Registers a listener for the `certificate-error` event.
on('console-message', listener)	this	Registers a listener for the `console-message` event.
on('context-menu', listener)	this	Registers a listener for the `context-menu` event.
on('crashed', listener)	this	Registers a listener for the `crashed` event.
on('cursor-changed', listener)	this	Registers a listener for the `cursor-changed` event.
on('destroyed', listener)	this	Registers a listener for the `destroyed` event.
on('devtools-closed', listener)	this	Registers a listener for the `devtools-closed` event.
on('devtools-focused', listener)	this	Registers a listener for the `devtools-focused` event.
on('devtools-opened', listener)	this	Registers a listener for the `devtools-opened` event.
on('devtools-reload-page', listener)	this	Registers a listener for the `devtools-reload-page` event.
on('did-attach-webview', listener)	this	Registers a listener for the `did-attach-webview` event.
on('did-change-theme-color', listener)	this	Registers a listener for the `did-change-theme-color` event.
on('did-create-window', listener)	this	Registers a listener for the `did-create-window` event.
on('did-fail-load', listener)	this	Registers a listener for the `did-fail-load` event.
on('did-fail-provisional-load', listener)	this	Registers a listener for the `did-fail-provisional-load` event.
on('did-finish-load', listener)	this	Registers a listener for the `did-finish-load` event.
on('did-frame-finish-load', listener)	this	Registers a listener for the `did-frame-finish-load` event.
on('did-frame-navigate', listener)	this	Registers a listener for the `did-frame-navigate` event.
on('did-navigate', listener)	this	Registers a listener for the `did-navigate` event.
on('did-navigate-in-page', listener)	this	Registers a listener for the `did-navigate-in-page` event.
on('did-redirect-navigation', listener)	this	Registers a listener for the `did-redirect-navigation` event.
on('did-start-loading', listener)	this	Registers a listener for the `did-start-loading` event.
on('did-start-navigation', listener)	this	Registers a listener for the `did-start-navigation` event.
on('did-stop-loading', listener)	this	Registers a listener for the `did-stop-loading` event.
on('dom-ready', listener)	this	Registers a listener for the `dom-ready` event.
on('enter-html-full-screen', listener)	this	Registers a listener for the `enter-html-full-screen` event.
on('focus', listener)	this	Registers a listener for the `focus` event.
on('found-in-page', listener)	this	Registers a listener for the `found-in-page` event.
on('frame-created', listener)	this	Registers a listener for the `frame-created` event.
on('ipc-message', listener)	this	Registers a listener for the `ipc-message` event.
on('ipc-message-sync', listener)	this	Registers a listener for the `ipc-message-sync` event.
on('leave-html-full-screen', listener)	this	Registers a listener for the `leave-html-full-screen` event.
on('login', listener)	this	Registers a listener for the `login` event.
on('media-paused', listener)	this	Registers a listener for the `media-paused` event.
on('media-started-playing', listener)	this	Registers a listener for the `media-started-playing` event.
on('new-window', listener)	this	Registers a listener for the `new-window` event.
on('page-favicon-updated', listener)	this	Registers a listener for the `page-favicon-updated` event.
on('page-title-updated', listener)	this	Registers a listener for the `page-title-updated` event.
on('paint', listener)	this	Registers a listener for the `paint` event.
on('plugin-crashed', listener)	this	Registers a listener for the `plugin-crashed` event.
on('preferred-size-changed', listener)	this	Registers a listener for the `preferred-size-changed` event.
on('preload-error', listener)	this	Registers a listener for the `preload-error` event.
on('render-process-gone', listener)	this	Registers a listener for the `render-process-gone` event.
on('responsive', listener)	this	Registers a listener for the `responsive` event.
on('select-bluetooth-device', listener)	this	Registers a listener for the `select-bluetooth-device` event.
on('select-client-certificate', listener)	this	Registers a listener for the `select-client-certificate` event.
on('unresponsive', listener)	this	Registers a listener for the `unresponsive` event.
on('update-target-url', listener)	this	Registers a listener for the `update-target-url` event.
on('will-attach-webview', listener)	this	Registers a listener for the `will-attach-webview` event.
on('will-navigate', listener)	this	Registers a listener for the `will-navigate` event.
on('will-prevent-unload', listener)	this	Registers a listener for the `will-prevent-unload` event.
on('will-redirect', listener)	this	Registers a listener for the `will-redirect` event.
on('zoom-changed', listener)	this	Registers a listener for the `zoom-changed` event.
once(event, listener)	this	Registers a one-time listener for the `before-input-event` event.
once(event, listener)	this	Registers a one-time listener for the `blur` event.
once(event, listener)	this	Registers a one-time listener for the `certificate-error` event.
once(event, listener)	this	Registers a one-time listener for the `console-message` event.
once(event, listener)	this	Registers a one-time listener for the `context-menu` event.
once(event, listener)	this	Registers a one-time listener for the `crashed` event.
once(event, listener)	this	Registers a one-time listener for the `cursor-changed` event.
once(event, listener)	this	Registers a one-time listener for the `destroyed` event.
once(event, listener)	this	Registers a one-time listener for the `devtools-closed` event.
once(event, listener)	this	Registers a one-time listener for the `devtools-focused` event.
once(event, listener)	this	Registers a one-time listener for the `devtools-opened` event.
once(event, listener)	this	Registers a one-time listener for the `devtools-reload-page` event.
once(event, listener)	this	Registers a one-time listener for the `did-attach-webview` event.
once(event, listener)	this	Registers a one-time listener for the `did-change-theme-color` event.
once(event, listener)	this	Registers a one-time listener for the `did-create-window` event.
once(event, listener)	this	Registers a one-time listener for the `did-fail-load` event.
once(event, listener)	this	Registers a one-time listener for the `did-fail-provisional-load` event.
once(event, listener)	this	Registers a one-time listener for the `did-finish-load` event.
once(event, listener)	this	Registers a one-time listener for the `did-frame-finish-load` event.
once(event, listener)	this	Registers a one-time listener for the `did-frame-navigate` event.
once(event, listener)	this	Registers a one-time listener for the `did-navigate` event.
once(event, listener)	this	Registers a one-time listener for the `did-navigate-in-page` event.
once(event, listener)	this	Registers a one-time listener for the `did-redirect-navigation` event.
once(event, listener)	this	Registers a one-time listener for the `did-start-loading` event.
once(event, listener)	this	Registers a one-time listener for the `did-start-navigation` event.
once(event, listener)	this	Registers a one-time listener for the `did-stop-loading` event.
once(event, listener)	this	Registers a one-time listener for the `dom-ready` event.
once(event, listener)	this	Registers a one-time listener for the `enter-html-full-screen` event.
once(event, listener)	this	Registers a one-time listener for the `focus` event.
once(event, listener)	this	Registers a one-time listener for the `found-in-page` event.
once(event, listener)	this	Registers a one-time listener for the `frame-created` event.
once(event, listener)	this	Registers a one-time listener for the `ipc-message` event.
once(event, listener)	this	Registers a one-time listener for the `ipc-message-sync` event.
once(event, listener)	this	Registers a one-time listener for the `leave-html-full-screen` event.
once(event, listener)	this	Registers a one-time listener for the `login` event.
once(event, listener)	this	Registers a one-time listener for the `media-paused` event.
once(event, listener)	this	Registers a one-time listener for the `media-started-playing` event.
once(event, listener)	this	Registers a one-time listener for the `new-window` event.
once(event, listener)	this	Registers a one-time listener for the `page-favicon-updated` event.
once(event, listener)	this	Registers a one-time listener for the `page-title-updated` event.
once(event, listener)	this	Registers a one-time listener for the `paint` event.
once(event, listener)	this	Registers a one-time listener for the `plugin-crashed` event.
once(event, listener)	this	Registers a one-time listener for the `preferred-size-changed` event.
once(event, listener)	this	Registers a one-time listener for the `preload-error` event.
once(event, listener)	this	Registers a one-time listener for the `render-process-gone` event.
once(event, listener)	this	Registers a one-time listener for the `responsive` event.
once(event, listener)	this	Registers a one-time listener for the `select-bluetooth-device` event.
once(event, listener)	this	Registers a one-time listener for the `select-client-certificate` event.
once(event, listener)	this	Registers a one-time listener for the `unresponsive` event.
once(event, listener)	this	Registers a one-time listener for the `update-target-url` event.
once(event, listener)	this	Registers a one-time listener for the `will-attach-webview` event.
once(event, listener)	this	Registers a one-time listener for the `will-navigate` event.
once(event, listener)	this	Registers a one-time listener for the `will-prevent-unload` event.
once(event, listener)	this	Registers a one-time listener for the `will-redirect` event.
once(event, listener)	this	Registers a one-time listener for the `zoom-changed` event.
openDevTools(options?)	void	Opens the developer tools.
paste()	void	Executes the editing command `paste` in the web page.
pasteAndMatchStyle()	void	Executes the editing command `pasteAndMatchStyle` in the web page.
postMessage(channel, message, transfer?)	void	Sends a message to the renderer process, optionally transferring ownership of message ports.
print(options?, callback?)	void	Prints the window's web page.
printToPDF(options)	Promise<Buffer>	Prints the window's web page as PDF.
redo()	void	Executes the editing command `redo` in the web page.
reload()	void	Reloads the current web page.
reloadIgnoringCache()	void	Reloads the current page and ignores the cache.
removeInsertedCSS(key)	Promise<void>	Removes the inserted CSS from the current web page identified by its key.
removeListener(event, listener)	this	Removes a previously registered `before-input-event` event listener.
removeListener(event, listener)	this	Removes a previously registered `blur` event listener.
removeListener(event, listener)	this	Removes a previously registered `certificate-error` event listener.
removeListener(event, listener)	this	Removes a previously registered `console-message` event listener.
removeListener(event, listener)	this	Removes a previously registered `context-menu` event listener.
removeListener(event, listener)	this	Removes a previously registered `crashed` event listener.
removeListener(event, listener)	this	Removes a previously registered `cursor-changed` event listener.
removeListener(event, listener)	this	Removes a previously registered `destroyed` event listener.
removeListener(event, listener)	this	Removes a previously registered `devtools-closed` event listener.
removeListener(event, listener)	this	Removes a previously registered `devtools-focused` event listener.
removeListener(event, listener)	this	Removes a previously registered `devtools-opened` event listener.
removeListener(event, listener)	this	Removes a previously registered `devtools-reload-page` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-attach-webview` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-change-theme-color` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-create-window` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-fail-load` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-fail-provisional-load` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-finish-load` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-frame-finish-load` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-frame-navigate` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-navigate` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-navigate-in-page` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-redirect-navigation` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-start-loading` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-start-navigation` event listener.
removeListener(event, listener)	this	Removes a previously registered `did-stop-loading` event listener.
removeListener(event, listener)	this	Removes a previously registered `dom-ready` event listener.
removeListener(event, listener)	this	Removes a previously registered `enter-html-full-screen` event listener.
removeListener(event, listener)	this	Removes a previously registered `focus` event listener.
removeListener(event, listener)	this	Removes a previously registered `found-in-page` event listener.
removeListener(event, listener)	this	Removes a previously registered `frame-created` event listener.
removeListener(event, listener)	this	Removes a previously registered `ipc-message` event listener.
removeListener(event, listener)	this	Removes a previously registered `ipc-message-sync` event listener.
removeListener(event, listener)	this	Removes a previously registered `leave-html-full-screen` event listener.
removeListener(event, listener)	this	Removes a previously registered `login` event listener.
removeListener(event, listener)	this	Removes a previously registered `media-paused` event listener.
removeListener(event, listener)	this	Removes a previously registered `media-started-playing` event listener.
removeListener(event, listener)	this	Removes a previously registered `new-window` event listener.
removeListener(event, listener)	this	Removes a previously registered `page-favicon-updated` event listener.
removeListener(event, listener)	this	Removes a previously registered `page-title-updated` event listener.
removeListener(event, listener)	this	Removes a previously registered `paint` event listener.
removeListener(event, listener)	this	Removes a previously registered `plugin-crashed` event listener.
removeListener(event, listener)	this	Removes a previously registered `preferred-size-changed` event listener.
removeListener(event, listener)	this	Removes a previously registered `preload-error` event listener.
removeListener(event, listener)	this	Removes a previously registered `render-process-gone` event listener.
removeListener(event, listener)	this	Removes a previously registered `responsive` event listener.
removeListener(event, listener)	this	Removes a previously registered `select-bluetooth-device` event listener.
removeListener(event, listener)	this	Removes a previously registered `select-client-certificate` event listener.
removeListener(event, listener)	this	Removes a previously registered `unresponsive` event listener.
removeListener(event, listener)	this	Removes a previously registered `update-target-url` event listener.
removeListener(event, listener)	this	Removes a previously registered `will-attach-webview` event listener.
removeListener(event, listener)	this	Removes a previously registered `will-navigate` event listener.
removeListener(event, listener)	this	Removes a previously registered `will-prevent-unload` event listener.
removeListener(event, listener)	this	Removes a previously registered `will-redirect` event listener.
removeListener(event, listener)	this	Removes a previously registered `zoom-changed` event listener.
removeWorkSpace(path)	void	Removes the specified path from the DevTools workspace.
replace(text)	void	Executes the editing command `replace` in the web page.
replaceMisspelling(text)	void	Executes the editing command `replaceMisspelling` in the web page.
savePage(fullPath, saveType)	Promise<void>	Saves the current web page to the given path.
selectAll()	void	Executes the editing command `selectAll` in the web page.
send(channel, args?)	void	Sends an asynchronous message to the renderer process via `channel`, along with arguments.
sendInputEvent(inputEvent)	void	Injects a trusted input event into the page, driving the same input pipeline a real user produces (unlike untrusted `dispatchEvent`, which CodeMirror and the CSS `:hover` engine ignore).
sendToFrame(frameId, channel, args?)	void	Sends an asynchronous message to a specific frame in a renderer process via `channel`.
setAudioMuted(muted)	void	Mutes or unmutes the audio on the current web page.
setBackgroundThrottling(allowed)	void	Controls whether this web contents throttles animations and timers when backgrounded.
setDevToolsWebContents(devToolsWebContents)	void	Uses the given web contents as the target to show DevTools.
setFrameRate(fps)	void	Sets the frame rate when offscreen rendering is enabled. Only values between 1 and 240 are accepted.
setIgnoreMenuShortcuts(ignore)	void	Ignores application menu shortcuts while this web contents is focused.
setImageAnimationPolicy(policy)	void	Sets the image animation policy for this web contents.
setUserAgent(userAgent)	void	Overrides the user agent for this web page.
setVisualZoomLevelLimits(minimumLevel, maximumLevel)	Promise<void>	Sets the maximum and minimum pinch-to-zoom level.
setWebRTCIPHandlingPolicy(policy)	void	Sets the WebRTC IP handling policy.
setWindowOpenHandler(handler)	void	Sets a handler called before a new window is requested by the renderer.
setZoomFactor(factor)	void	Changes the zoom factor to the specified factor.
setZoomLevel(level)	void	Changes the zoom level to the specified level.
showDefinitionForSelection()	void	Shows a pop-up dictionary that searches the selected word on the page. Only available on macOS.
startDrag(item)	void	Sets the `item` as the dragging item for the current drag-drop operation.
startPainting()	void	Starts painting when offscreen rendering is enabled and not painting.
stop()	void	Stops any pending navigation.
stopFindInPage(action)	void	Stops any `findInPage` request for the web contents with the provided action.
stopPainting()	void	Stops painting when offscreen rendering is enabled and painting.
takeHeapSnapshot(filePath)	Promise<void>	Takes a V8 heap snapshot and saves it to `filePath`.
toggleDevTools()	void	Toggles the developer tools.
undo()	void	Executes the editing command `undo` in the web page.
unselect()	void	Executes the editing command `unselect` in the web page.

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