IRequestContext Interface

Version 51.0.0

A request context provides request handling for a set of related browser or URL request objects. A request context can be specified when creating a new browser by setting the [!:IWebBrowser.RequestContext] property (Passing in via the constructor for the OffScreen control is preferred). Browser objects with different request contexts will never be hosted in the same render process. Browser objects with the same request context may or may not be hosted in the same render process depending on the process model.Browser objects created indirectly via the JavaScript window.open function or targeted links will share the same render process and the same request context as the source browser.

Namespace: CefSharp
Assembly: CefSharp (in CefSharp.dll) Version: 51.0.0.0 (51.0.0.0)

Syntax

C++

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public interface IRequestContext : IDisposable

public interface class IRequestContext : IDisposable

The IRequestContext type exposes the following members.

Properties

	Name	Description
	CachePath	Returns the cache path for this object. If empty an "incognito mode" in-memory cache is being used.
	IsGlobal	Returns true if this object is the global context. The global context is used by default when creating a browser or URL request with a NULL context argument.

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Methods

	Name	Description
	CanSetPreference	Returns true if the preference with the specified name can be modified using SetPreference. As one example preferences set via the command-line usually cannot be modified. This method must be called on the CEF UI thread.
	ClearCertificateExceptions	Clears all certificate exceptions that were added as part of handling OnCertificateError(IWebBrowser, IBrowser, CefErrorCode, String, ISslInfo, IRequestCallback). If you call this it is recommended that you also call CloseAllConnections(ICompletionCallback) or you risk not being prompted again for server certificates if you reconnect quickly.
	ClearSchemeHandlerFactories	Clear all registered scheme handler factories.
	CloseAllConnections	Clears all active and idle connections that Chromium currently has. This is only recommended if you have released all other CEF objects but don't yet want to call Cef.Shutdown().
	Dispose	Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources. (Inherited from IDisposable.)
	GetAllPreferences	Returns all preferences as a dictionary. The returned object contains a copy of the underlying preference values and modifications to the returned object will not modify the underlying preference values. This method must be called on the browser process UI thread.
	GetDefaultCookieManager	Returns the default cookie manager for this object. This will be the global cookie manager if this object is the global request context. Otherwise, this will be the default cookie manager used when this request context does not receive a value via IRequestContextHandler.GetCookieManager().
	GetPreference	Returns the value for the preference with the specified name. Returns NULL if the preference does not exist. The returned object contains a copy of the underlying preference value and modifications to the returned object will not modify the underlying preference value. This method must be called on the CEF UI thread.
	HasPreference	Returns true if a preference with the specified name exists. This method must be called on the CEF UI thread.
	IsSame	Returns true if this object is pointing to the same context object.
	IsSharingWith	Returns true if this object is sharing the same storage as the specified context.
	PurgePluginListCache	Tells all renderer processes associated with this context to throw away their plugin list cache. If reloadPages is true they will also reload all pages with plugins. RequestContextHandler.OnBeforePluginLoad may be called to rebuild the plugin list cache.
	RegisterSchemeHandlerFactory	Register a scheme handler factory for the specified schemeName and optional domainName. An empty domainName value for a standard scheme will cause the factory to match all domain names. The domainName value will be ignored for non-standard schemes. If schemeName is a built-in scheme and no handler is returned by factory then the built-in scheme handler factory will be called. If schemeName is a custom scheme then you must also implement the CefApp::OnRegisterCustomSchemes() method in all processes. This function may be called multiple times to change or remove the factory that matches the specified schemeName and optional domainName.
	ResolveHostAsync	Attempts to resolve origin to a list of associated IP addresses.
	ResolveHostCached	Attempts to resolve origin to a list of associated IP addresses using cached data. This method must be called on the CEF IO thread. Use Cef.IOThreadTaskFactory to execute on that thread.
	SetPreference	Set the value associated with preference name. If value is null the preference will be restored to its default value. If setting the preference fails then error will be populated with a detailed description of the problem. This method must be called on the CEF UI thread. Preferences set via the command-line usually cannot be modified.

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Reference

CefSharp Namespace