Posts the specified webMessage to the frame.
The frame receives the message by subscribing to the message event of
the window.chrome.webview of the frame document.
The event args is an instances of MessageEvent. The
ICoreWebView2Settings::IsWebMessageEnabled setting must be TRUE or
the message will not be sent. The data property of the event
args is the webMessage string parameter parsed as a JSON string into a
JavaScript object. The source property of the event args is a reference
to the window.chrome.webview object. For information about sending
messages from the HTML document in the WebView to the host, navigate to
add_WebMessageReceived.
The message is delivered asynchronously. If a navigation occurs before the
message is posted to the page, the message is discarded.
Posts the specified webMessage to the frame. The frame receives the message by subscribing to the message event of the window.chrome.webview of the frame document.
window.chrome.webview.addEventListener('message', handler) window.chrome.webview.removeEventListener('message', handler)The event args is an instances of MessageEvent. The ICoreWebView2Settings::IsWebMessageEnabled setting must be TRUE or the message will not be sent. The data property of the event args is the webMessage string parameter parsed as a JSON string into a JavaScript object. The source property of the event args is a reference to the window.chrome.webview object. For information about sending messages from the HTML document in the WebView to the host, navigate to add_WebMessageReceived. The message is delivered asynchronously. If a navigation occurs before the message is posted to the page, the message is discarded.