Understanding modules

I am trying to understand modules a little bit, I am using Asterisk 1.8 which I cannot currently change. I have a module that I have set up to register and have verified that it is running. I added into the load_module function the following line (which I think is registering to listen for the Newexten event sent out when a new extension is created):

res |= ast_manager_register_xml("Newexten", EVENT_FLAG_DIALPLAN, action_newExtenTest);

now my action_newExtenTest function is as follows:

static int action_newExtenTest(struct mansession *s, const struct message *m) {
     ast_log(LOG_ERROR, "A new extension was just created\n");
     return 0;

All I am currently trying to do is print out a line whenever a new extension is created. However I don’t see my printout. Am I mistaken in something I have done?

See viewtopic.php?f=1&t=12322

I wasn’t aware that AMI provided any mechanism to reflect events back into the Asterisk code.

If this way is not possible is there a way of finding my app in Asterisk and calling a function in my app with values passed in?