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general.html
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"><LINK
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>Chapter 5. General</H1
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><DIV
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><DL
><DT
><B
>Table of Contents</B
></DT
><DT
><A
HREF="sdlinit.html"
>SDL_Init</A
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> -- Initializes SDL</DT
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><DT
><A
HREF="sdlinitsubsystem.html"
>SDL_InitSubSystem</A
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> -- Initialize subsystems</DT
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><DT
><A
HREF="sdlquitsubsystem.html"
>SDL_QuitSubSystem</A
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> -- Shut down a subsystem</DT
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><DT
><A
HREF="sdlquit.html"
>SDL_Quit</A
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> -- Shut down SDL</DT
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><DT
><A
HREF="sdlwasinit.html"
>SDL_WasInit</A
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> -- Check which subsystems are initialized</DT
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><DT
><A
HREF="sdlgeterror.html"
>SDL_GetError</A
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> -- Get SDL error string</DT
><DT
><A
HREF="sdlenvvars.html"
>SDL_envvars</A
> -- SDL environment variables</DT
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><P
>Before SDL can be used in a program it must be initialized with <A
HREF="sdlinit.html"
><TT
CLASS="FUNCTION"
>SDL_Init</TT
></A
>. <TT
CLASS="FUNCTION"
>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
HREF="sdlinitsubsystem.html"
><TT
CLASS="FUNCTION"
>SDL_InitSubSystem</TT
></A
> and <A
HREF="sdlquitsubsystem.html"
><TT
CLASS="FUNCTION"
>SDL_QuitSubSystem</TT
></A
>.</P
><P
>SDL must also be shut down before the program exits to make sure it cleans up correctly. Calling <A
HREF="sdlquit.html"
><TT
CLASS="FUNCTION"
>SDL_Quit</TT
></A
> shuts down all subsystems and frees any resources allocated to SDL.</P
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>Up</A
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