如何使用SDL2 iOS应用程序事件?

I am currently using the SDL2 Library and C to write an iPhone application, and things have been going well for the most part. Unfortunately, the documentation seems to be fairly thin in some areas, especially iOS-specific functions. I'm new to using SDL2, and this makes things very difficult. Thus far, everything has worked, but I am stumped on one problem. SDL2 defines six event-types to be used specifically for mobile applications. The README-ios.txt file describes them and using them as such:I am currently using the SDL2 Library and C to