registerScriptMessageHandlerWithReply
Registers a new user script message handler in script world with name @world_name.
Different from webkit_user_content_manager_register_script_message_handler(), when using this function to register the handler, the connected signal is script-message-with-reply-received, and a reply provided by the user is expected. Otherwise, the user will receive a default undefined value.
If null is passed as the @world_name, the default world will be used. See webkit_user_content_manager_register_script_message_handler() for full description.
Registering a script message handler will fail if the requested name has been already registered before.
The registered handler can be unregistered by using webkit_user_content_manager_unregister_script_message_handler().
Return
true if message handler was registered successfully, or false otherwise.
Since
2.40
Parameters
Name of the script message channel
the name of a #WebKitScriptWorld