Usage of ActionListener - C++ Toolkit

Hello,

First of all, you should not use smart pointers with pfcActionListener otherwise you are for a number of unpleasant surprises. pfcActionListener is inheriting from xobject which is a reference counting 'thingy' from 1990's... 

The calling code should be modified like this:

instead of: 

wSession->AddActionListener(smartpointer to Listener );

should be:

pfcActionListener_ptr listener = new tester();

wSession->AddActionListener(listener);

The cleaner approach would be to define pfcActionListener variable as static/global outside of user_initialize(). This would allow to call  something like this from user_terminate():

...

wSession->RemoveActionListener( g_LISTENER) 

g_LISTENER = NULL; 

HIH.

FV.

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@michi wrote:

Hi everybody,

I'm new at this topic, so this is some newbie question. I want to know, how to use Actionlisteners. So i added a same example. There is a tester-class and beneath user_initialize(){} is the OnAfterModelDisplay methode. In user_initialize() i tried different things to get any respone in Creo. I thought i have to take something like the pointer wSession and call addactionlistener with a smartpointer to a Listener (what ever a listener is?!). But nothing worked.

The same problem i have with the other Actionlisteners, which need a methode-call addactionlistner.

Can somebody help me at this point and show me the right direction please. i really want to understand the whole concept of this. thank you!

 

<inculdes>

class tester : public pfcSessionActionListener
{
public:
	tester(){} //default constructor
	void OnAfterModelDisplay();
};

extern "C" int user_initialize(
	int argc,
	char *argv[],
	char *version,
	char *build,
	wchar_t errbuf[80])
{ 

	try
	{
		pfcSession_ptr Session = pfcGetProESession ();
		wfcWSession_ptr wSession = wfcWSession::cast (Session);
		wSession->AddActionListener(smartpointer to Listener );
		return (wfcTK_NO_ERROR);
	}

}

void tester::OnAfterModelDisplay()
{
	try
	{
 //do something great
	}
}

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