Create a new #WebKitUserMessage including also a list of UNIX file descriptors to be sent.
the message name
the message parameters as a #GVariant
the message file descriptors
the newly created #WebKitUserMessage object.
ConstructionException GTK+ fails to create the object.
2.28
See Implementation
Create a new #WebKitUserMessage including also a list of UNIX file descriptors to be sent.