vanilla. 1 - a type of foodstuff grown in a pod. 2 - straight down the line, boring sex, with as little foreplay as possible, the kind of sex that the Catholic Church (proud sponsors of this year's Republican party) want you to have, if you have to have sex at all, and if you're married. The sex was all right, but she's a bit vanilla for me. 7. vanilla.
This tutorial will teach you how to set up an OpenGL window. The window can be windowed or fullscreen, any size you want, any resolution you want, and any color depth you want. The code is very flexible and can be used for all your OpenGL projects.
If you want your app to be able to open PDF files you will need to register your app as an app that can open PDF files. To do this read the Document Interaction Programming Topics for iOS this talks about Registering the File Types Your App Supports.