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>SDL_ActiveEvent</TITLE |
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><H1 |
><A |
NAME="SDLACTIVEEVENT" |
>SDL_ActiveEvent</A |
></H1 |
><DIV |
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><A |
NAME="AEN3522" |
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><H2 |
>Name</H2 |
>SDL_ActiveEvent -- Application visibility event structure</DIV |
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><A |
NAME="AEN3525" |
></A |
><H2 |
>Structure Definition</H2 |
><PRE |
CLASS="PROGRAMLISTING" |
>typedef struct{ |
Uint8 type; |
Uint8 gain; |
Uint8 state; |
} SDL_ActiveEvent;</PRE |
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><A |
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><H2 |
>Structure Data</H2 |
><DIV |
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><TT |
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><I |
>type</I |
></TT |
></TD |
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><TT |
CLASS="LITERAL" |
>SDL_ACTIVEEVENT.</TT |
></TD |
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><TR |
><TD |
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><TT |
CLASS="STRUCTFIELD" |
><I |
>gain</I |
></TT |
></TD |
><TD |
ALIGN="LEFT" |
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>0 if the event is a loss or 1 if it is a gain.</TD |
></TR |
><TR |
><TD |
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><TT |
CLASS="STRUCTFIELD" |
><I |
>state</I |
></TT |
></TD |
><TD |
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VALIGN="TOP" |
><TT |
CLASS="LITERAL" |
>SDL_APPMOUSEFOCUS</TT |
> if mouse focus was gained or lost, <TT |
CLASS="LITERAL" |
>SDL_APPINPUTFOCUS</TT |
> if input focus was gained or lost, or <TT |
CLASS="LITERAL" |
>SDL_APPACTIVE</TT |
> if the application was iconified (<TT |
CLASS="STRUCTFIELD" |
><I |
>gain</I |
></TT |
>=0) or restored(<TT |
CLASS="STRUCTFIELD" |
><I |
>gain</I |
></TT |
>=1).</TD |
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><A |
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><H2 |
>Description</H2 |
><P |
><SPAN |
CLASS="STRUCTNAME" |
>SDL_ActiveEvent</SPAN |
> is a member of the <A |
HREF="sdlevent.html" |
><SPAN |
CLASS="STRUCTNAME" |
>SDL_Event</SPAN |
></A |
> union and is used when an event of type <TT |
CLASS="LITERAL" |
>SDL_ACTIVEEVENT</TT |
> is reported.</P |
><P |
>When the mouse leaves or enters the window area a <TT |
CLASS="LITERAL" |
>SDL_APPMOUSEFOCUS</TT |
> type activation event occurs, if the mouse entered the window then <TT |
CLASS="STRUCTFIELD" |
><I |
>gain</I |
></TT |
> will be 1, otherwise <TT |
CLASS="STRUCTFIELD" |
><I |
>gain</I |
></TT |
> will be 0. A <TT |
CLASS="LITERAL" |
>SDL_APPINPUTFOCUS</TT |
> type activation event occurs when the application loses or gains keyboard focus. This usually occurs when another application is made active. Finally, a <TT |
CLASS="LITERAL" |
>SDL_APPACTIVE</TT |
> type event occurs when the application is either minimised/iconified (<TT |
CLASS="STRUCTFIELD" |
><I |
>gain</I |
></TT |
>=0) or restored.</P |
><DIV |
CLASS="NOTE" |
><BLOCKQUOTE |
CLASS="NOTE" |
><P |
><B |
>Note: </B |
>This event does not occur when an application window is first created.</P |
></BLOCKQUOTE |
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CLASS="REFSECT1" |
><A |
NAME="AEN3567" |
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><H2 |
>See Also</H2 |
><P |
><A |
HREF="sdlevent.html" |
><SPAN |
CLASS="STRUCTNAME" |
>SDL_Event</SPAN |
></A |
>, |
<A |
HREF="sdlgetappstate.html" |
><TT |
CLASS="FUNCTION" |
>SDL_GetAppState</TT |
></A |
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