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>SDL_PollEvent</H1
><DIV
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><A
NAME="AEN5472"
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><H2
>Name</H2
>SDL_PollEvent&nbsp;--&nbsp;Polls for currently pending events.</DIV
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>Synopsis</H2
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><PRE
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>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_PollEvent</B
></CODE
>(SDL_Event *event);</CODE
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><H2
>Description</H2
><P
>Polls for currently pending events, and returns <SPAN
CLASS="RETURNVALUE"
>1</SPAN
>
if there are any pending events, or <SPAN
CLASS="RETURNVALUE"
>0</SPAN
> if there
are none available.  </P
><P
>If <TT
CLASS="PARAMETER"
><I
>event</I
></TT
> is not <TT
CLASS="LITERAL"
>NULL</TT
>, the next
event is removed from the queue and stored in that area.</P
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>Examples</H2
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CLASS="PROGRAMLISTING"
>SDL_Event event; /* Event structure */

.
.
.
/* Check for events */
while(SDL_PollEvent(&#38;event)){  /* Loop until there are no events left on the queue */
  switch(event.type){  /* Process the appropiate event type */
    case SDL_KEYDOWN:  /* Handle a KEYDOWN event */
      printf("Oh! Key press\n");
      break;
    case SDL_MOUSEMOTION:
      .
      .
      .
    default: /* Report an unhandled event */
      printf("I don't know what this event is!\n");
  }
}</PRE
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>See Also</H2
><P
><A
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><SPAN
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>SDL_Event</SPAN
></A
>,
<A
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><TT
CLASS="FUNCTION"
>SDL_WaitEvent</TT
></A
>,
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><TT
CLASS="FUNCTION"
>SDL_PeepEvents</TT
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author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 17 Mar 2009 03:24:22 +0000
parents	355632dca928
children