How to call CoreDisplay_DisplayCreateInfoDictionary(CGDirectDisplayID) function?

[coolcoolkg21]

Dear author,

I'm trying to build a similar project that programmed with Objective-C, but it fails and shows "Undefined symbol: _CoreDisplay_DisplayCreateInfoDictionary."
Do I have to import other header files or libraries to make this function work?
Thanks in advance.

[waydabber]

Hi,

yes, you should add this:

extern CFDictionaryRef CoreDisplay_DisplayCreateInfoDictionary(CGDirectDisplayID);

Also you probably have to link the CoreDisplay framework to your project from /System/Library/Frameworks/CoreDisplay.framework:

Cheers!

[coolcoolkg21]

Thank you so much!