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| >Chapter 5. General</H1 |
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| >Table of Contents</B |
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| >SDL_Init</A |
| > -- Initializes SDL</DT |
| ><DT |
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| HREF="sdlinitsubsystem.html" |
| >SDL_InitSubSystem</A |
| > -- Initialize subsystems</DT |
| ><DT |
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| >SDL_QuitSubSystem</A |
| > -- Shut down a subsystem</DT |
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| >SDL_Quit</A |
| > -- Shut down SDL</DT |
| ><DT |
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| >SDL_WasInit</A |
| > -- Check which subsystems are initialized</DT |
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| >SDL_GetError</A |
| > -- Get SDL error string</DT |
| ><DT |
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| >SDL_envvars</A |
| > -- SDL environment variables</DT |
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| >Before SDL can be used in a program it must be initialized with <A |
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| ><TT |
| CLASS="FUNCTION" |
| >SDL_Init</TT |
| ></A |
| >. <TT |
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| >SDL_Init</TT |
| > initializes all the subsystems that the user requests (video, audio, joystick, timers and/or cdrom). Once SDL is initialized with <TT |
| CLASS="FUNCTION" |
| >SDL_Init</TT |
| > subsystems can be shut down and initialized as needed using <A |
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| ><TT |
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| >SDL_InitSubSystem</TT |
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| > and <A |
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| >.</P |
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| >SDL must also be shut down before the program exits to make sure it cleans up correctly. Calling <A |
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| >SDL_Quit</TT |
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| > shuts down all subsystems and frees any resources allocated to SDL.</P |
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