FrameHandlerOnMainFrameChanged Method

Called when the main frame changes due to one of the following: - (a) initial browser creation - (b) final browser destruction - (c) cross-origin navigation - (d) re-navigation after renderer process termination (due to crashes, etc). oldFrame will be null and newFrame will be non-null when a main frame is assigned to browser for the first time. oldFrame will be non-null and newFrame will be null when a main frame is removed from browser for the last time. Both oldFrame and newFrame will be non-nullfor cross-origin navigations or re-navigation after renderer process termination. This method will be called after OnFrameCreated(IWebBrowser, IBrowser, IFrame) for newFrame and/or after OnFrameDetached(IWebBrowser, IBrowser, IFrame) for oldFrame. If called after OnBeforeClose(IWebBrowser, IBrowser) during browser destruction then IsValid will return false for browser.

protected virtual void OnMainFrameChanged(
	IWebBrowser chromiumWebBrowser,
	IBrowser browser,
	IFrame oldFrame,
	IFrame newFrame
)

protected:
virtual void OnMainFrameChanged(
	IWebBrowser^ chromiumWebBrowser, 
	IBrowser^ browser, 
	IFrame^ oldFrame, 
	IFrame^ newFrame
)