Asynchronously gets the default application for handling URIs with the given URI scheme. A URI scheme is the initial part of the URI, up to but not including the ':', e.g. "http", "ftp" or "sip".
a string containing a URI scheme.
optional #GCancellable object, null to ignore
a #GAsyncReadyCallback to call when the request is done
Asynchronously gets the default application for handling URIs with the given URI scheme. A URI scheme is the initial part of the URI, up to but not including the ':', e.g. "http", "ftp" or "sip".