Mercurial > sdl-ios-xcode
view docs/html/sdlkeyboardevent.html @ 1077:f122afdfa025
The Darwin/MacOSX joystick code is largely copied from the HID Utilities
package...make the symbols defined by HID Utilities static inside SDL so that
an app can link against their own copy of this package without symbol clash.
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Wed, 15 Jun 2005 23:41:57 +0000 |
parents | 355632dca928 |
children |
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<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 >