📄 sdljoybuttonevent.html

📁 VC5.6.7的一个扩展库。跟DirectX的功能差不多。
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<HTML><HEAD><TITLE>SDL_JoyButtonEvent</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="SDL Library Documentation"HREF="index.html"><LINKREL="UP"TITLE="SDL Event Structures."HREF="eventstructures.html"><LINKREL="PREVIOUS"TITLE="SDL_JoyAxisEvent"HREF="sdljoyaxisevent.html"><LINKREL="NEXT"TITLE="SDL_JoyHatEvent"HREF="sdljoyhatevent.html"></HEAD><BODYCLASS="REFENTRY"BGCOLOR="#FFF8DC"TEXT="#000000"LINK="#0000ee"VLINK="#551a8b"ALINK="#ff0000"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">SDL Library Documentation</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="sdljoyaxisevent.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="sdljoyhatevent.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SDLJOYBUTTONEVENT"></A>SDL_JoyButtonEvent</H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN4258"></A><H2>Name</H2>SDL_JoyButtonEvent&nbsp;--&nbsp;Joystick button event structure</DIV><DIVCLASS="REFSECT1"><ANAME="AEN4261"></A><H2>Structure Definition</H2><PRECLASS="PROGRAMLISTING">typedef struct{  Uint8 type;  Uint8 which;  Uint8 button;  Uint8 state;} SDL_JoyButtonEvent;</PRE></DIV><DIVCLASS="REFSECT1"><ANAME="AEN4264"></A><H2>Structure Data</H2><DIVCLASS="INFORMALTABLE"><ANAME="AEN4266"></A><P></P><TABLEBORDER="0"CLASS="CALSTABLE"><TBODY><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>type</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="LITERAL">SDL_JOYBUTTONDOWN</TT> or <TTCLASS="LITERAL">SDL_JOYBUTTONUP</TT></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>which</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP">Joystick device index</TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>button</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP">Joystick button index</TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>state</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="LITERAL">SDL_PRESSED</TT> or <TTCLASS="LITERAL">SDL_RELEASED</TT></TD></TR></TBODY></TABLE><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN4289"></A><H2>Description</H2><P><SPANCLASS="STRUCTNAME">SDL_JoyButtonEvent</SPAN> is a member of the <AHREF="sdlevent.html"><SPANCLASS="STRUCTNAME">SDL_Event</SPAN></A> union and is used when an event of type <TTCLASS="LITERAL">SDL_JOYBUTTONDOWN</TT> or <TTCLASS="LITERAL">SDL_JOYBUTTONUP</TT> is reported.</P><P>A <TTCLASS="LITERAL">SDL_JOYBUTTONDOWN</TT> or <TTCLASS="LITERAL">SDL_JOYBUTTONUP</TT> event occurs when ever a user presses or releases a button on a joystick. The field <TTCLASS="STRUCTFIELD"><I>which</I></TT> is the index of the joystick that reported the event and <TTCLASS="STRUCTFIELD"><I>button</I></TT> is the index of the button (for a more detailed explaination see the <AHREF="joystick.html">Joystick section</A>). <TTCLASS="STRUCTFIELD"><I>state</I></TT> is the current state or the button which is either <TTCLASS="LITERAL">SDL_PRESSED</TT> or <TTCLASS="LITERAL">SDL_RELEASED</TT>.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN4306"></A><H2>See Also</H2><P><AHREF="sdlevent.html"><SPANCLASS="STRUCTNAME">SDL_Event</SPAN></A>,<AHREF="joystick.html">Joystick Functions</A>,<AHREF="sdljoystickeventstate.html"><TTCLASS="FUNCTION">SDL_JoystickEventState</TT></A>,<AHREF="sdljoystickgetbutton.html"><TTCLASS="FUNCTION">SDL_JoystickGetButton</TT></A></P></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="sdljoyaxisevent.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="index.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="sdljoyhatevent.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">SDL_JoyAxisEvent</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="eventstructures.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">SDL_JoyHatEvent</TD></TR></TABLE></DIV></BODY></HTML>
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