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Preparing an OpenFrameworks Application for the Mac App Store

I had to figure out a few things to get an Openframeworks 008 application ready for submission to the Mac App Store. Below are some of my findings.

Remove Quicktime and QTKit

Apple no longer supports the Quicktime API. So remove all of the ofQuicktime and ofQTKit files from the source files in the video folder of the OpenFrameworks XCode project. Remove the QTKit and Quicktime frameworks from the Openframeworks project and your Xcode project inside the frameworks folder. Make sure the libraries are not present in the Build Phases > Link Binary with Libraries.
No Mo QT!
If you need a video player, kronick’s addon that uses AVFoundation, is a good solution. I haven’t tried to find a solution for grabbing video using AVFoundation, so do your research if you plan to use it in your application.

Support Retina displays

As of this writing, OF does not support retina displays on osx. But Theo offered up a fix for GLFW to support Hidpi. So make sure to use GLFW for the windowing. Don’t forget to set ‘High Resolution Capable’ to YES.

Info.plist High Res Capable Settings

Add some preprocessor macros for convenience

I think it’s useful to know if you are in release mode or debug mode, so I add some preprocessor macros in the build settings of the project. I usually use OF_DEBUG and OF_RELEASE respectively. This usually comes in hand at some point during the dev process. Like only showing debug GUIs #ifdef OF_DEBUG. I’ll go over some more uses a little later.

Preprocessor macros in xcode
(only focus on OF_DEBUG + set OF_RELEASE for Release)

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ofxTweenzor for OpenFrameworks

ofxTweenzor is a addon for OpenFrameworks that allows for tweening values over time. I began developing the addon because I started using OF on the iPhone and I wanted a little transition here and there. I started programming and someone mentioned ofxTween. I checked it out and turns out that it runs on poco events and right now poco is not included in the iPhone build. Being a Flash developer, I wanted some tweens and I wanted to get familiar with events in C++ and how they could be handled, which took a little getting used to. I learned a great deal about pointers and events in C++, and I still have a way to go.

Hopefully someone will find this useful, and any questions or comments are welcome.

The easing equations are from both Robert Penner and the Tweener class by Zeh Fernando, Nate Chatellier and Arthur Debert.

Download ofxTweenzor

The source includes a basic example file, and most of the following is included in there.

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