Index - O
| openAudio | SDL.Raw.Audio, SDL.Raw |
| openAudioDevice | |
| 1 (Function) | SDL.Raw.Audio, SDL.Raw |
| 2 (Function) | SDL.Audio, SDL |
| openController | SDL.Input.GameController |
| openDeviceCallback | SDL.Audio, SDL |
| openDeviceChannels | SDL.Audio, SDL |
| openDeviceFormat | SDL.Audio, SDL |
| openDeviceFreq | SDL.Audio, SDL |
| openDeviceName | SDL.Audio, SDL |
| openDeviceSamples | SDL.Audio, SDL |
| OpenDeviceSpec | |
| 1 (Type/Class) | SDL.Audio, SDL |
| 2 (Data Constructor) | SDL.Audio, SDL |
| openDeviceUsage | SDL.Audio, SDL |
| OpenGL | SDL.Hint, SDL |
| OpenGLConfig | |
| 1 (Type/Class) | SDL.Video.OpenGL, SDL.Video, SDL |
| 2 (Data Constructor) | SDL.Video.OpenGL, SDL.Video, SDL |
| OpenGLContext | SDL.Video, SDL |
| OpenGLES | SDL.Hint, SDL |
| OpenGLES2 | SDL.Hint, SDL |
| openJoystick | SDL.Input.Joystick, SDL.Input, SDL |
| origin | SDL.Vect, SDL |
| ortho | SDL.Vect, SDL |
| outer | SDL.Vect, SDL |
| OverridePriority | SDL.Hint, SDL |