view docs/html/sdlpeepevents.html @ 855:aa4ac9e65d92

I noticed MacOSX SDL sets up working directory to parent of executable. On BeOS is should setup it the same way, but it only does when Tracker wasn't restarted. I checked code and it looks like a hack to me :( It looks for env variable and than comapres it to default when OpenTracker was started after boot, and wasn't restarted. That's probably ok, for that exact case. Unfortunetly that variable isn't always like that. For example, after Tracker crashes and is restarted, env variable most probably is different (depends on how Tracker was restarted, by what application, etc... for example: i have launcher application from which i can restart Tracker, and after that nev variable points to that application's directory, not Tracker's).
author Sam Lantinga <slouken@libsdl.org>
date Tue, 24 Feb 2004 18:58:40 +0000
parents 355632dca928
children
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><H1
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>SDL_PeepEvents</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN5421"
></A
><H2
>Name</H2
>SDL_PeepEvents&nbsp;--&nbsp;Checks the event queue for messages and optionally returns them.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN5424"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN5425"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_PeepEvents</B
></CODE
>(SDL_Event *events, int numevents, SDL_eventaction action, Uint32 mask);</CODE
></P
><P
></P
></DIV
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><DIV
CLASS="REFSECT1"
><A
NAME="AEN5431"
></A
><H2
>Description</H2
><P
>Checks the event queue for messages and optionally returns them.</P
><P
>If <TT
CLASS="PARAMETER"
><I
>action</I
></TT
> is <TT
CLASS="LITERAL"
>SDL_ADDEVENT</TT
>, up to 
<TT
CLASS="PARAMETER"
><I
>numevents</I
></TT
> events will be added to the back of the event
 queue.</P
><P
>If <TT
CLASS="PARAMETER"
><I
>action</I
></TT
> is <TT
CLASS="LITERAL"
>SDL_PEEKEVENT</TT
>, up to
<TT
CLASS="PARAMETER"
><I
>numevents</I
></TT
> events at the front of the event queue, 
matching <A
HREF="sdlevent.html"
><TT
CLASS="PARAMETER"
><I
>mask</I
></TT
></A
>, 
will be returned and will not be removed from the queue.</P
><P
>If <TT
CLASS="PARAMETER"
><I
>action</I
></TT
> is <TT
CLASS="LITERAL"
>SDL_GETEVENT</TT
>, up to 
<TT
CLASS="PARAMETER"
><I
>numevents</I
></TT
> events at the front of the event queue, 
matching <A
HREF="sdlevent.html"
><TT
CLASS="PARAMETER"
><I
>mask</I
></TT
></A
>, 
will be returned and will be removed from the queue.</P
><P
>The <TT
CLASS="PARAMETER"
><I
>mask</I
></TT
> parameter is an bitwise OR of
<TT
CLASS="LITERAL"
>SDL_EVENTMASK</TT
>(<TT
CLASS="PARAMETER"
><I
>event_type</I
></TT
>), for all
event types you are interested in.</P
><P
>This function is thread-safe.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN5455"
></A
><H2
>Return Value</H2
><P
>This function returns the number of events actually stored, or 
<SPAN
CLASS="RETURNVALUE"
>-1</SPAN
> if there was an error.  </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN5459"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlevent.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Event</SPAN
></A
>,
<A
HREF="sdlpollevent.html"
><TT
CLASS="FUNCTION"
>SDL_PollEvent</TT
></A
>,
<A
HREF="sdlpushevent.html"
><TT
CLASS="FUNCTION"
>SDL_PushEvent</TT
></A
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