Mercurial > sdl-ios-xcode
view docs/html/sdlkeyboardevent.html @ 4165:3b8ac3d311a2 SDL-1.2
Hello.
This patch provides basic support for video on the Sony PS3
Linux framebuffer. Scaling, format-conversion, and drawing is
done from the SPEs, so there is little performance impact to
PPE applications. This is by no means production quality code,
but it is a very good start and a good example of how to use the
PS3's hardware capabilities to accelerate video playback on
the box.
The driver has been verified to work with ffplay, mplayer and xine.
This piece of software has been developed at the IBM R&D Lab
in Boeblingen, Germany and is now returned to the community.
Enjoy !
Signed-off-by: D.Herrendoerfer < d.herrendoerfer [at] de [dot] ibm [dot] com >
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Thu, 02 Apr 2009 04:06:55 +0000 |
parents | 355632dca928 |
children |
line wrap: on
line source
<HTML ><HEAD ><TITLE >SDL_KeyboardEvent</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="SDL Event Structures." HREF="eventstructures.html"><LINK REL="PREVIOUS" TITLE="SDL_ActiveEvent" HREF="sdlactiveevent.html"><LINK REL="NEXT" TITLE="SDL_MouseMotionEvent" HREF="sdlmousemotionevent.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlactiveevent.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlmousemotionevent.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLKEYBOARDEVENT" ></A >SDL_KeyboardEvent</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN4011" ></A ><H2 >Name</H2 >SDL_KeyboardEvent -- Keyboard event structure</DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4014" ></A ><H2 >Structure Definition</H2 ><PRE CLASS="PROGRAMLISTING" >typedef struct{ Uint8 type; Uint8 state; SDL_keysym keysym; } SDL_KeyboardEvent;</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4017" ></A ><H2 >Structure Data</H2 ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN4019" ></A ><P ></P ><TABLE BORDER="0" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >type</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_KEYDOWN</TT > or <TT CLASS="LITERAL" >SDL_KEYUP</TT ></TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >state</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_PRESSED</TT > or <TT CLASS="LITERAL" >SDL_RELEASED</TT ></TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >keysym</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Contains key press information</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4038" ></A ><H2 >Description</H2 ><P ><SPAN CLASS="STRUCTNAME" >SDL_KeyboardEvent</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_KEYDOWN</TT > or <TT CLASS="LITERAL" >SDL_KEYUP</TT > is reported.</P ><P >The <TT CLASS="STRUCTFIELD" ><I >type</I ></TT > and <TT CLASS="STRUCTFIELD" ><I >state</I ></TT > actually report the same information, they just use different values to do it! A keyboard event occurs when a key is released (<TT CLASS="STRUCTFIELD" ><I >type</I ></TT >=<TT CLASS="LITERAL" >SDK_KEYUP</TT > or <TT CLASS="STRUCTFIELD" ><I >state</I ></TT >=<TT CLASS="LITERAL" >SDL_RELEASED</TT >) and when a key is pressed (<TT CLASS="STRUCTFIELD" ><I >type</I ></TT >=<TT CLASS="LITERAL" >SDL_KEYDOWN</TT > or <TT CLASS="STRUCTFIELD" ><I >state</I ></TT >=<TT CLASS="LITERAL" >SDL_PRESSED</TT >). The information on what key was pressed or released is in the <A HREF="sdlkeysym.html" ><SPAN CLASS="STRUCTNAME" >keysym</SPAN ></A > structure.</P ><DIV CLASS="NOTE" ><BLOCKQUOTE CLASS="NOTE" ><P ><B >Note: </B >Repeating <TT CLASS="LITERAL" >SDL_KEYDOWN</TT > events will occur if key repeat is enabled (see <A HREF="sdlenablekeyrepeat.html" ><TT CLASS="FUNCTION" >SDL_EnableKeyRepeat</TT ></A >).</P ></BLOCKQUOTE ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4064" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_Event</SPAN ></A >, <A HREF="sdlkeysym.html" ><SPAN CLASS="STRUCTNAME" >SDL_keysym</SPAN ></A >, <A HREF="sdlenablekeyrepeat.html" ><TT CLASS="FUNCTION" >SDL_EnableKeyRepeat</TT ></A >, <A HREF="sdlenableunicode.html" ><TT CLASS="FUNCTION" >SDL_EnableUNICODE</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlactiveevent.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlmousemotionevent.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_ActiveEvent</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="eventstructures.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_MouseMotionEvent</TD ></TR ></TABLE ></DIV ></BODY ></HTML >