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Fixed SDL 1.2 compatibility problem. The API specifies that SDL_OpenAudio() will fill out the 'desired' audio spec with the correct samples and size set by the driver. This value is important since it may be used by applications that size audio buffers, etc. However, we want to allow advanced applications to call SDL_OpenAudioDevice() which gets passed a const 'desired' parameter, and have the correct data filled into the 'obtained' parameter, possibly allowing or not allowing format changes. So... 'obtained' becomes the audio format the user callback is expected to use, and we add flags to allow the application to specify which format changes are allowed. Note: We really need to add a way to query the 'obtained' audio spec.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 13 Dec 2008 06:36:47 +0000
parents 720a96badf51
children
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<HTML
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>SDL_ExposeEvent</TITLE
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><H1
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>SDL_ExposeEvent</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN4503"
></A
><H2
>Name</H2
>SDL_ExposeEvent&nbsp;--&nbsp;Quit requested event</DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4506"
></A
><H2
>Structure Definition</H2
><PRE
CLASS="PROGRAMLISTING"
>typedef struct{
  Uint8 type
} SDL_ExposeEvent;</PRE
></DIV
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>Structure Data</H2
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><TT
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><I
>type</I
></TT
></TD
><TD
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><TT
CLASS="LITERAL"
>SDL_VIDEOEXPOSE</TT
></TD
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></TBODY
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><P
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><H2
>Description</H2
><P
><SPAN
CLASS="STRUCTNAME"
>SDL_ExposeEvent</SPAN
> is a member of the <A
HREF="sdlevent.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Event</SPAN
></A
> union and is used whan an event of type <TT
CLASS="LITERAL"
>SDL_VIDEOEXPOSE</TT
> is reported.</P
><P
>A VIDEOEXPOSE event is triggered when the screen has been modified
outside of the application, usually by the window manager and needs to
be redrawn.</P
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>See Also</H2
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>SDL_Event</SPAN
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>,
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>SDL_SetEventFilter</TT
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