Send @message to the #WebKitWebPage corresponding to @web_view. If @message is floating, it's consumed.
If you don't expect any reply, or you simply want to ignore it, you can pass %NULL as @callback.
When the operation is finished, @callback will be called. You can then call
webkit_web_view_send_message_to_page_finish() to get the message reply.
Send @message to the #WebKitWebPage corresponding to @web_view. If @message is floating, it's consumed.
If you don't expect any reply, or you simply want to ignore it, you can pass %NULL as @callback. When the operation is finished, @callback will be called. You can then call webkit_web_view_send_message_to_page_finish() to get the message reply.