Events and Notifications on dialog items

Mihalcea Bogdan — Tue, 14 Sep 2021 07:25:57 GMT

Hello!
How can I use the event notifications in Archicad API?
I created a new Button class based on the DG::Button class which has a "name" variable. When I click this button I want to make something happen.
For now I am using

 if(ev.GetSource() == some button) { do something ... }

My problem is that the ev.GetSource() does not return my Button class pointer but it returns DG::ButtonItem pointer which does not contain the newly created functions like GetName().
I even made a new Observer class which inherits the ButtonItemObserver but I am stuck at this. This button will do only one type of thing like a HTTP request based on the name of this button.
To be more clear I will write the code here:


class MyButton : public DG::Button {
   public:
      GS::UniString GetName();
      void Do_HTTPRequest();//Based on the name of the button
   private:
      GS::UniString name;
}
class MyButtonObserver : public DG::ButtonItemObserver {
}

is there any way to override the OnClick event of a button?

Re: Events and Notifications on dialog items

Viktor Kovacs — Wed, 28 Jul 2021 09:11:28 GMT

ev.GetSource() will always return a pointer to the base class, so you have to dynamic_cast it to your inherited class.

Something like this:


MyButton* myButton = dynamic_cast<MyButton*> (ev.GetSource ());

Re: Events and Notifications on dialog items

Mihalcea Bogdan — Wed, 28 Jul 2021 11:13:19 GMT

Thank you!
I tried it and it works.

topic Re: Events and Notifications on dialog items in Archicad C++ API

Events and Notifications on dialog items

Re: Events and Notifications on dialog items

Re: Events and Notifications on dialog items