Opening Trade Windows With CastSpellByName()

[Zelik]

An addon that I am making requires trade windows to be opened/closed automatically.

While CastSpellByName() is a protected function, the game does not seem to block calling it to open a trade window.

If I type in "/run CastSpellByName("Tailoring")", than it works fine. However, I cannot get a trade window to be opened as the result of an event, which is what I'd like.

Is this intended? Is there a way to work around it?

[Seerah]

This is intended. CastSpellByName() requires a hardware event.

[ZikO]

Originally Posted by Seerah This is intended. CastSpellByName() requires a hardware event.

What are those hardware events and do all protected API functions require hardware events?

Thanks

[Akryn]

Originally Posted by ZikO What are those hardware events and do all protected API functions require hardware events? Thanks

It means the UI can't cast a spell unless it is invoked by a keyboard binding or button press. Before 2.0, when CastSpellByName() and the movement functions were available to addon code, you could have written a real bot in Lua if it weren't for that fact.

Not all protected functions require a hardware event, no.

[ZikO]

thanks for that Akryn, it sounds reasonable. Can I ask you one more question? What are protected functions?

Sorry if I ask these questions post by post. This is the way I learn all this stuff :P

Best regards.

[Shirik]

A protected function is one that cannot be called by insecure code (i.e., you, or code you tainted). That being said, the fact that you are able to run CastSpellByName("Tailoring") implies that it is not protected and rather a sub-call of it is protected, but the fact of the matter remains that you can't use CastSpellByName() to cast spells directly.

Simply put, a protected function is a function that you cannot use directly.