Index - I
| identity | SDL.Vect, SDL |
| ImmediateUpdates | SDL.Video.OpenGL, SDL.Video, SDL |
| Index1LSB | SDL.Video.Renderer, SDL.Video, SDL |
| Index1MSB | SDL.Video.Renderer, SDL.Video, SDL |
| Index4LSB | SDL.Video.Renderer, SDL.Video, SDL |
| Index4MSB | SDL.Video.Renderer, SDL.Video, SDL |
| Index8 | SDL.Video.Renderer, SDL.Video, SDL |
| infinitePerspective | SDL.Vect, SDL |
| Information | SDL.Video, SDL |
| init | SDL.Raw.Basic, SDL.Raw |
| InitAudio | SDL.Init, SDL |
| InitEvents | SDL.Init, SDL |
| InitFlag | |
| 1 (Type/Class) | SDL.Raw.Enum, SDL.Raw |
| 2 (Type/Class) | SDL.Init, SDL |
| InitGameController | SDL.Init, SDL |
| InitHaptic | SDL.Init, SDL |
| initialize | SDL.Init, SDL |
| initializeAll | SDL.Init, SDL |
| InitJoystick | SDL.Init, SDL |
| initSubSystem | SDL.Raw.Basic, SDL.Raw |
| InitTimer | SDL.Init, SDL |
| InitVideo | SDL.Init, SDL |
| InputMotion | SDL.Event, SDL |
| intersectRect | SDL.Raw.Video, SDL.Raw |
| intersectRectAndLine | SDL.Raw.Video, SDL.Raw |
| inv22 | SDL.Vect, SDL |
| inv33 | SDL.Vect, SDL |
| inv44 | SDL.Vect, SDL |
| inverseFrustum | SDL.Vect, SDL |
| inverseInfinitePerspective | SDL.Vect, SDL |
| inverseOrtho | SDL.Vect, SDL |
| inversePerspective | SDL.Vect, SDL |
| isGameController | SDL.Raw.Event, SDL.Raw |
| isScreenKeyboardShown | |
| 1 (Function) | SDL.Raw.Event, SDL.Raw |
| 2 (Function) | SDL.Input.Keyboard, SDL.Input, SDL |
| isScreenSaverEnabled | SDL.Raw.Video, SDL.Raw |
| isTextInputActive | SDL.Raw.Event, SDL.Raw |
| IYUV | SDL.Video.Renderer, SDL.Video, SDL |