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CfxSchemeRegistrar Class

[This is preliminary documentation and is subject to change.]

Structure that manages custom scheme registrations.
Inheritance Hierarchy

Namespace: Chromium
Assembly: ChromiumFX (in ChromiumFX.dll)
public class CfxSchemeRegistrar : CfxLibraryBase

The CfxSchemeRegistrar type exposes the following members.

Public propertyNativePtr
Provides access to the underlying native cef struct. This is a refcounted library struct derived from cef_base_t. Add a ref in order to keep it alive when this managed object go out of scope.
(Inherited from CfxLibraryBase.)
Public methodAddCustomScheme
Register a custom scheme. This function should not be called for the built- in HTTP, HTTPS, FILE, FTP, ABOUT and DATA schemes. If |isStandard| is true (1) the scheme will be treated as a standard scheme. Standard schemes are subject to URL canonicalization and parsing rules as defined in the Common Internet Scheme Syntax RFC 1738 Section 3.1 available at In particular, the syntax for standard scheme URLs must be of the form: <pre> [scheme]://[username]:[password]@[host]:[port]/[url-path] </pre> Standard scheme URLs must have a host component that is a fully qualified domain name as defined in Section 3.5 of RFC 1034 [13] and Section 2.1 of RFC 1123. These URLs will be canonicalized to "scheme://host/path" in the simplest case and "scheme://username:password@host:port/path" in the most explicit case. For example, "scheme:host/path" and "scheme:///host/path" will both be canonicalized to "scheme://host/path". The origin of a standard scheme URL is the combination of scheme, host and port (i.e., "scheme://host:port" in the most explicit case). For non-standard scheme URLs only the "scheme:" component is parsed and canonicalized. The remainder of the URL will be passed to the handler as- is. For example, "scheme:///some%20text" will remain the same. Non-standard scheme URLs cannot be used as a target for form submission. If |isLocal| is true (1) the scheme will be treated as local (i.e., with the same security rules as those applied to "file" URLs). Normal pages cannot link to or access local URLs. Also, by default, local URLs can only perform XMLHttpRequest calls to the same URL (origin + path) that originated the request. To allow XMLHttpRequest calls from a local URL to other URLs with the same origin set the CfxSettings.FileAccessFromFileUrlsAllowed value to true (1). To allow XMLHttpRequest calls from a local URL to all origins set the CfxSettings.UniversalAccessFromFileUrlsAllowed value to true (1). If |isDisplayIsolated| is true (1) the scheme will be treated as display- isolated. This means that pages cannot display these URLs unless they are from the same scheme. For example, pages in another origin cannot create iframes or hyperlinks to URLs with this scheme. This function may be called on any thread. It should only be called once per unique |schemeName| value. If |schemeName| is already registered or if an error occurs this function will return false (0).
See also the original CEF documentation in cef/include/capi/cef_scheme_capi.h.
See Also