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Ajouts des libs windows
1 Jede 81 <HTML
2     ><HEAD
3     ><TITLE
4     >SDL_Event</TITLE
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7     CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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36     ><TR
37     ><TH
38     COLSPAN="3"
39     ALIGN="center"
40     >SDL Library Documentation</TH
41     ></TR
42     ><TR
43     ><TD
44     WIDTH="10%"
45     ALIGN="left"
46     VALIGN="bottom"
47     ><A
48     HREF="eventstructures.html"
49     ACCESSKEY="P"
50     >Prev</A
51     ></TD
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53     WIDTH="80%"
54     ALIGN="center"
55     VALIGN="bottom"
56     ></TD
57     ><TD
58     WIDTH="10%"
59     ALIGN="right"
60     VALIGN="bottom"
61     ><A
62     HREF="sdlactiveevent.html"
63     ACCESSKEY="N"
64     >Next</A
65     ></TD
66     ></TR
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69     ALIGN="LEFT"
70     WIDTH="100%"></DIV
71     ><H1
72     ><A
73     NAME="SDLEVENT"
74     ></A
75     >SDL_Event</H1
76     ><DIV
77     CLASS="REFNAMEDIV"
78     ><A
79     NAME="AEN3711"
80     ></A
81     ><H2
82     >Name</H2
83     >SDL_Event&nbsp;--&nbsp;General event structure</DIV
84     ><DIV
85     CLASS="REFSECT1"
86     ><A
87     NAME="AEN3714"
88     ></A
89     ><H2
90     >Structure Definition</H2
91     ><PRE
92     CLASS="PROGRAMLISTING"
93     >typedef union{
94     Uint8 type;
95     SDL_ActiveEvent active;
96     SDL_KeyboardEvent key;
97     SDL_MouseMotionEvent motion;
98     SDL_MouseButtonEvent button;
99     SDL_JoyAxisEvent jaxis;
100     SDL_JoyBallEvent jball;
101     SDL_JoyHatEvent jhat;
102     SDL_JoyButtonEvent jbutton;
103     SDL_ResizeEvent resize;
104     SDL_ExposeEvent expose;
105     SDL_QuitEvent quit;
106     SDL_UserEvent user;
107     SDL_SysWMEvent syswm;
108     } SDL_Event;</PRE
109     ></DIV
110     ><DIV
111     CLASS="REFSECT1"
112     ><A
113     NAME="AEN3717"
114     ></A
115     ><H2
116     >Structure Data</H2
117     ><DIV
118     CLASS="INFORMALTABLE"
119     ><A
120     NAME="AEN3719"
121     ></A
122     ><P
123     ></P
124     ><TABLE
125     BORDER="0"
126     CLASS="CALSTABLE"
127     ><TBODY
128     ><TR
129     ><TD
130     ALIGN="LEFT"
131     VALIGN="TOP"
132     ><TT
133     CLASS="STRUCTFIELD"
134     ><I
135     >type</I
136     ></TT
137     ></TD
138     ><TD
139     ALIGN="LEFT"
140     VALIGN="TOP"
141     >The type of event</TD
142     ></TR
143     ><TR
144     ><TD
145     ALIGN="LEFT"
146     VALIGN="TOP"
147     ><TT
148     CLASS="STRUCTFIELD"
149     ><I
150     >active</I
151     ></TT
152     ></TD
153     ><TD
154     ALIGN="LEFT"
155     VALIGN="TOP"
156     ><A
157     HREF="sdlactiveevent.html"
158     >Activation event</A
159     ></TD
160     ></TR
161     ><TR
162     ><TD
163     ALIGN="LEFT"
164     VALIGN="TOP"
165     ><TT
166     CLASS="STRUCTFIELD"
167     ><I
168     >key</I
169     ></TT
170     ></TD
171     ><TD
172     ALIGN="LEFT"
173     VALIGN="TOP"
174     ><A
175     HREF="sdlkeyboardevent.html"
176     >Keyboard event</A
177     ></TD
178     ></TR
179     ><TR
180     ><TD
181     ALIGN="LEFT"
182     VALIGN="TOP"
183     ><TT
184     CLASS="STRUCTFIELD"
185     ><I
186     >motion</I
187     ></TT
188     ></TD
189     ><TD
190     ALIGN="LEFT"
191     VALIGN="TOP"
192     ><A
193     HREF="sdlmousemotionevent.html"
194     >Mouse motion event</A
195     ></TD
196     ></TR
197     ><TR
198     ><TD
199     ALIGN="LEFT"
200     VALIGN="TOP"
201     ><TT
202     CLASS="STRUCTFIELD"
203     ><I
204     >button</I
205     ></TT
206     ></TD
207     ><TD
208     ALIGN="LEFT"
209     VALIGN="TOP"
210     ><A
211     HREF="sdlmousebuttonevent.html"
212     >Mouse button event</A
213     ></TD
214     ></TR
215     ><TR
216     ><TD
217     ALIGN="LEFT"
218     VALIGN="TOP"
219     ><TT
220     CLASS="STRUCTFIELD"
221     ><I
222     >jaxis</I
223     ></TT
224     ></TD
225     ><TD
226     ALIGN="LEFT"
227     VALIGN="TOP"
228     ><A
229     HREF="sdljoyaxisevent.html"
230     >Joystick axis motion event</A
231     ></TD
232     ></TR
233     ><TR
234     ><TD
235     ALIGN="LEFT"
236     VALIGN="TOP"
237     ><TT
238     CLASS="STRUCTFIELD"
239     ><I
240     >jball</I
241     ></TT
242     ></TD
243     ><TD
244     ALIGN="LEFT"
245     VALIGN="TOP"
246     ><A
247     HREF="sdljoyballevent.html"
248     >Joystick trackball motion event</A
249     ></TD
250     ></TR
251     ><TR
252     ><TD
253     ALIGN="LEFT"
254     VALIGN="TOP"
255     ><TT
256     CLASS="STRUCTFIELD"
257     ><I
258     >jhat</I
259     ></TT
260     ></TD
261     ><TD
262     ALIGN="LEFT"
263     VALIGN="TOP"
264     ><A
265     HREF="sdljoyhatevent.html"
266     >Joystick hat motion event</A
267     ></TD
268     ></TR
269     ><TR
270     ><TD
271     ALIGN="LEFT"
272     VALIGN="TOP"
273     ><TT
274     CLASS="STRUCTFIELD"
275     ><I
276     >jbutton</I
277     ></TT
278     ></TD
279     ><TD
280     ALIGN="LEFT"
281     VALIGN="TOP"
282     ><A
283     HREF="sdljoybuttonevent.html"
284     >Joystick button event</A
285     ></TD
286     ></TR
287     ><TR
288     ><TD
289     ALIGN="LEFT"
290     VALIGN="TOP"
291     ><TT
292     CLASS="STRUCTFIELD"
293     ><I
294     >resize</I
295     ></TT
296     ></TD
297     ><TD
298     ALIGN="LEFT"
299     VALIGN="TOP"
300     ><A
301     HREF="sdlresizeevent.html"
302     >Application window resize event</A
303     ></TD
304     ></TR
305     ><TR
306     ><TD
307     ALIGN="LEFT"
308     VALIGN="TOP"
309     ><TT
310     CLASS="STRUCTFIELD"
311     ><I
312     >expose</I
313     ></TT
314     ></TD
315     ><TD
316     ALIGN="LEFT"
317     VALIGN="TOP"
318     ><A
319     HREF="sdlexposeevent.html"
320     >Application window expose event</A
321     ></TD
322     ></TR
323     ><TR
324     ><TD
325     ALIGN="LEFT"
326     VALIGN="TOP"
327     ><TT
328     CLASS="STRUCTFIELD"
329     ><I
330     >quit</I
331     ></TT
332     ></TD
333     ><TD
334     ALIGN="LEFT"
335     VALIGN="TOP"
336     ><A
337     HREF="sdlquitevent.html"
338     >Application quit request event</A
339     ></TD
340     ></TR
341     ><TR
342     ><TD
343     ALIGN="LEFT"
344     VALIGN="TOP"
345     ><TT
346     CLASS="STRUCTFIELD"
347     ><I
348     >user</I
349     ></TT
350     ></TD
351     ><TD
352     ALIGN="LEFT"
353     VALIGN="TOP"
354     ><A
355     HREF="sdluserevent.html"
356     >User defined event</A
357     ></TD
358     ></TR
359     ><TR
360     ><TD
361     ALIGN="LEFT"
362     VALIGN="TOP"
363     ><TT
364     CLASS="STRUCTFIELD"
365     ><I
366     >syswm</I
367     ></TT
368     ></TD
369     ><TD
370     ALIGN="LEFT"
371     VALIGN="TOP"
372     ><A
373     HREF="sdlsyswmevent.html"
374     >Undefined window manager event</A
375     ></TD
376     ></TR
377     ></TBODY
378     ></TABLE
379     ><P
380     ></P
381     ></DIV
382     ></DIV
383     ><DIV
384     CLASS="REFSECT1"
385     ><A
386     NAME="AEN3791"
387     ></A
388     ><H2
389     >Description</H2
390     ><P
391     >The <SPAN
392     CLASS="STRUCTNAME"
393     >SDL_Event</SPAN
394     > union is the core to all event handling is SDL, its probably the most important structure after <SPAN
395     CLASS="STRUCTNAME"
396     >SDL_Surface</SPAN
397     >. <SPAN
398     CLASS="STRUCTNAME"
399     >SDL_Event</SPAN
400     > is a union of all event structures used in SDL, using it is a simple matter of knowing which union member relates to which event <TT
401     CLASS="STRUCTFIELD"
402     ><I
403     >type</I
404     ></TT
405     >.</P
406     ><P
407     ><DIV
408     CLASS="INFORMALTABLE"
409     ><A
410     NAME="AEN3799"
411     ></A
412     ><P
413     ></P
414     ><TABLE
415     BORDER="1"
416     CLASS="CALSTABLE"
417     ><THEAD
418     ><TR
419     ><TH
420     ALIGN="LEFT"
421     VALIGN="TOP"
422     >Event <TT
423     CLASS="STRUCTFIELD"
424     ><I
425     >type</I
426     ></TT
427     ></TH
428     ><TH
429     ALIGN="LEFT"
430     VALIGN="TOP"
431     >Event Structure</TH
432     ></TR
433     ></THEAD
434     ><TBODY
435     ><TR
436     ><TD
437     ALIGN="LEFT"
438     VALIGN="MIDDLE"
439     ><TT
440     CLASS="LITERAL"
441     >SDL_ACTIVEEVENT</TT
442     ></TD
443     ><TD
444     ALIGN="LEFT"
445     VALIGN="MIDDLE"
446     ><A
447     HREF="sdlactiveevent.html"
448     ><SPAN
449     CLASS="STRUCTNAME"
450     >SDL_ActiveEvent</SPAN
451     ></A
452     ></TD
453     ></TR
454     ><TR
455     ><TD
456     ALIGN="LEFT"
457     VALIGN="TOP"
458     ><TT
459     CLASS="LITERAL"
460     >SDL_KEYDOWN/UP</TT
461     ></TD
462     ><TD
463     ALIGN="LEFT"
464     VALIGN="TOP"
465     ><A
466     HREF="sdlkeyboardevent.html"
467     ><SPAN
468     CLASS="STRUCTNAME"
469     >SDL_KeyboardEvent</SPAN
470     ></A
471     ></TD
472     ></TR
473     ><TR
474     ><TD
475     ALIGN="LEFT"
476     VALIGN="TOP"
477     ><TT
478     CLASS="LITERAL"
479     >SDL_MOUSEMOTION</TT
480     ></TD
481     ><TD
482     ALIGN="LEFT"
483     VALIGN="TOP"
484     ><A
485     HREF="sdlmousemotionevent.html"
486     ><SPAN
487     CLASS="STRUCTNAME"
488     >SDL_MouseMotionEvent</SPAN
489     ></A
490     ></TD
491     ></TR
492     ><TR
493     ><TD
494     ALIGN="LEFT"
495     VALIGN="TOP"
496     ><TT
497     CLASS="LITERAL"
498     >SDL_MOUSEBUTTONDOWN/UP</TT
499     ></TD
500     ><TD
501     ALIGN="LEFT"
502     VALIGN="TOP"
503     ><A
504     HREF="sdlmousebuttonevent.html"
505     ><SPAN
506     CLASS="STRUCTNAME"
507     >SDL_MouseButtonEvent</SPAN
508     ></A
509     ></TD
510     ></TR
511     ><TR
512     ><TD
513     ALIGN="LEFT"
514     VALIGN="TOP"
515     ><TT
516     CLASS="LITERAL"
517     >SDL_JOYAXISMOTION</TT
518     ></TD
519     ><TD
520     ALIGN="LEFT"
521     VALIGN="TOP"
522     ><A
523     HREF="sdljoyaxisevent.html"
524     ><SPAN
525     CLASS="STRUCTNAME"
526     >SDL_JoyAxisEvent</SPAN
527     ></A
528     ></TD
529     ></TR
530     ><TR
531     ><TD
532     ALIGN="LEFT"
533     VALIGN="TOP"
534     ><TT
535     CLASS="LITERAL"
536     >SDL_JOYBALLMOTION</TT
537     ></TD
538     ><TD
539     ALIGN="LEFT"
540     VALIGN="TOP"
541     ><A
542     HREF="sdljoyballevent.html"
543     ><SPAN
544     CLASS="STRUCTNAME"
545     >SDL_JoyBallEvent</SPAN
546     ></A
547     ></TD
548     ></TR
549     ><TR
550     ><TD
551     ALIGN="LEFT"
552     VALIGN="TOP"
553     ><TT
554     CLASS="LITERAL"
555     >SDL_JOYHATMOTION</TT
556     ></TD
557     ><TD
558     ALIGN="LEFT"
559     VALIGN="TOP"
560     ><A
561     HREF="sdljoyhatevent.html"
562     ><SPAN
563     CLASS="STRUCTNAME"
564     >SDL_JoyHatEvent</SPAN
565     ></A
566     ></TD
567     ></TR
568     ><TR
569     ><TD
570     ALIGN="LEFT"
571     VALIGN="TOP"
572     ><TT
573     CLASS="LITERAL"
574     >SDL_JOYBUTTONDOWN/UP</TT
575     ></TD
576     ><TD
577     ALIGN="LEFT"
578     VALIGN="TOP"
579     ><A
580     HREF="sdljoybuttonevent.html"
581     ><SPAN
582     CLASS="STRUCTNAME"
583     >SDL_JoyButtonEvent</SPAN
584     ></A
585     ></TD
586     ></TR
587     ><TR
588     ><TD
589     ALIGN="LEFT"
590     VALIGN="TOP"
591     ><TT
592     CLASS="LITERAL"
593     >SDL_QUIT</TT
594     ></TD
595     ><TD
596     ALIGN="LEFT"
597     VALIGN="TOP"
598     ><A
599     HREF="sdlquitevent.html"
600     ><SPAN
601     CLASS="STRUCTNAME"
602     >SDL_QuitEvent</SPAN
603     ></A
604     ></TD
605     ></TR
606     ><TR
607     ><TD
608     ALIGN="LEFT"
609     VALIGN="TOP"
610     ><TT
611     CLASS="LITERAL"
612     >SDL_SYSWMEVENT</TT
613     ></TD
614     ><TD
615     ALIGN="LEFT"
616     VALIGN="TOP"
617     ><A
618     HREF="sdlsyswmevent.html"
619     ><SPAN
620     CLASS="STRUCTNAME"
621     >SDL_SysWMEvent</SPAN
622     ></A
623     ></TD
624     ></TR
625     ><TR
626     ><TD
627     ALIGN="LEFT"
628     VALIGN="TOP"
629     ><TT
630     CLASS="LITERAL"
631     >SDL_VIDEORESIZE</TT
632     ></TD
633     ><TD
634     ALIGN="LEFT"
635     VALIGN="TOP"
636     ><A
637     HREF="sdlresizeevent.html"
638     ><SPAN
639     CLASS="STRUCTNAME"
640     >SDL_ResizeEvent</SPAN
641     ></A
642     ></TD
643     ></TR
644     ><TR
645     ><TD
646     ALIGN="LEFT"
647     VALIGN="TOP"
648     ><TT
649     CLASS="LITERAL"
650     >SDL_VIDEOEXPOSE</TT
651     ></TD
652     ><TD
653     ALIGN="LEFT"
654     VALIGN="TOP"
655     ><A
656     HREF="sdlexposeevent.html"
657     ><SPAN
658     CLASS="STRUCTNAME"
659     >SDL_ExposeEvent</SPAN
660     ></A
661     ></TD
662     ></TR
663     ><TR
664     ><TD
665     ALIGN="LEFT"
666     VALIGN="TOP"
667     ><TT
668     CLASS="LITERAL"
669     >SDL_USEREVENT</TT
670     ></TD
671     ><TD
672     ALIGN="LEFT"
673     VALIGN="TOP"
674     ><A
675     HREF="sdluserevent.html"
676     ><SPAN
677     CLASS="STRUCTNAME"
678     >SDL_UserEvent</SPAN
679     ></A
680     ></TD
681     ></TR
682     ></TBODY
683     ></TABLE
684     ><P
685     ></P
686     ></DIV
687     ></P
688     ></DIV
689     ><DIV
690     CLASS="REFSECT1"
691     ><A
692     NAME="AEN3885"
693     ></A
694     ><H2
695     >Use</H2
696     ><P
697     >The <SPAN
698     CLASS="STRUCTNAME"
699     >SDL_Event</SPAN
700     > structure has two uses</P
701     ><P
702     ></P
703     ><UL
704     COMPACT="COMPACT"
705     ><LI
706     ><P
707     >Reading events on the event queue</P
708     ></LI
709     ><LI
710     ><P
711     >Placing events on the event queue</P
712     ></LI
713     ></UL
714     ><P
715     >Reading events from the event queue is done with either <A
716     HREF="sdlpollevent.html"
717     ><TT
718     CLASS="FUNCTION"
719     >SDL_PollEvent</TT
720     ></A
721     > or <A
722     HREF="sdlpeepevents.html"
723     ><TT
724     CLASS="FUNCTION"
725     >SDL_PeepEvents</TT
726     ></A
727     >. We'll use <TT
728     CLASS="FUNCTION"
729     >SDL_PollEvent</TT
730     > and step through an example.</P
731     ><P
732     >First off, we create an empty <SPAN
733     CLASS="STRUCTNAME"
734     >SDL_Event</SPAN
735     > structure.
736     <PRE
737     CLASS="PROGRAMLISTING"
738     >SDL_Event test_event;</PRE
739     >
740     <TT
741     CLASS="FUNCTION"
742     >SDL_PollEvent</TT
743     > removes the next event from the event queue, if there are no events on the queue it returns <SPAN
744     CLASS="RETURNVALUE"
745     >0</SPAN
746     > otherwise it returns <SPAN
747     CLASS="RETURNVALUE"
748     >1</SPAN
749     >. We use a <TT
750     CLASS="FUNCTION"
751     >while</TT
752     > loop to process each event in turn.
753     <PRE
754     CLASS="PROGRAMLISTING"
755     >while(SDL_PollEvent(&#38;test_event)) {</PRE
756     >
757     The <TT
758     CLASS="FUNCTION"
759     >SDL_PollEvent</TT
760     > function take a pointer to an <SPAN
761     CLASS="STRUCTNAME"
762     >SDL_Event</SPAN
763     > structure that is to be filled with event information. We know that if <TT
764     CLASS="FUNCTION"
765     >SDL_PollEvent</TT
766     > removes an event from the queue then the event information will be placed in our <SPAN
767     CLASS="STRUCTNAME"
768     >test_event</SPAN
769     > structure, but we also know that the <SPAN
770     CLASS="emphasis"
771     ><I
772     CLASS="EMPHASIS"
773     >type</I
774     ></SPAN
775     > of event will be placed in the <TT
776     CLASS="STRUCTFIELD"
777     ><I
778     >type</I
779     ></TT
780     > member of <SPAN
781     CLASS="STRUCTNAME"
782     >test_event</SPAN
783     >. So to handle each event <TT
784     CLASS="STRUCTFIELD"
785     ><I
786     >type</I
787     ></TT
788     > seperately we use a <TT
789     CLASS="FUNCTION"
790     >switch</TT
791     > statement.
792     <PRE
793     CLASS="PROGRAMLISTING"
794     > switch(test_event.type) {</PRE
795     >
796     We need to know what kind of events we're looking for <SPAN
797     CLASS="emphasis"
798     ><I
799     CLASS="EMPHASIS"
800     >and</I
801     ></SPAN
802     > the event <TT
803     CLASS="STRUCTFIELD"
804     ><I
805     >type</I
806     ></TT
807     >'s of those events. So lets assume we want to detect where the user is moving the mouse pointer within our application. We look through our event types and notice that <TT
808     CLASS="LITERAL"
809     >SDL_MOUSEMOTION</TT
810     > is, more than likely, the event we're looking for. A little <A
811     HREF="sdlmousemotionevent.html"
812     >more</A
813     > research tells use that <TT
814     CLASS="LITERAL"
815     >SDL_MOUSEMOTION</TT
816     > events are handled within the <A
817     HREF="sdlmousemotionevent.html"
818     ><SPAN
819     CLASS="STRUCTNAME"
820     >SDL_MouseMotionEvent</SPAN
821     ></A
822     > structure which is the <TT
823     CLASS="STRUCTFIELD"
824     ><I
825     >motion</I
826     ></TT
827     > member of <SPAN
828     CLASS="STRUCTNAME"
829     >SDL_Event</SPAN
830     >. We can check for the <TT
831     CLASS="LITERAL"
832     >SDL_MOUSEMOTION</TT
833     > event <TT
834     CLASS="STRUCTFIELD"
835     ><I
836     >type</I
837     ></TT
838     > within our <TT
839     CLASS="FUNCTION"
840     >switch</TT
841     > statement like so:
842     <PRE
843     CLASS="PROGRAMLISTING"
844     > case SDL_MOUSEMOTION:</PRE
845     >
846     All we need do now is read the information out of the <TT
847     CLASS="STRUCTFIELD"
848     ><I
849     >motion</I
850     ></TT
851     > member of <SPAN
852     CLASS="STRUCTNAME"
853     >test_event</SPAN
854     >.
855     <PRE
856     CLASS="PROGRAMLISTING"
857     > printf("We got a motion event.\n");
858     printf("Current mouse position is: (%d, %d)\n", test_event.motion.x, test_event.motion.y);
859     break;
860     default:
861     printf("Unhandled Event!\n");
862     break;
863     }
864     }
865     printf("Event queue empty.\n");</PRE
866     ></P
867     ><P
868     >It is also possible to push events onto the event queue and so use it as a two-way communication path. Both <A
869     HREF="sdlpushevent.html"
870     ><TT
871     CLASS="FUNCTION"
872     >SDL_PushEvent</TT
873     ></A
874     > and <A
875     HREF="sdlpeepevents.html"
876     ><TT
877     CLASS="FUNCTION"
878     >SDL_PeepEvents</TT
879     ></A
880     > allow you to place events onto the event queue. This is usually used to place a <TT
881     CLASS="LITERAL"
882     >SDL_USEREVENT</TT
883     > on the event queue, however you could use it to post fake input events if you wished. Creating your own events is a simple matter of choosing the event type you want, setting the <TT
884     CLASS="STRUCTFIELD"
885     ><I
886     >type</I
887     ></TT
888     > member and filling the appropriate member structure with information.
889     <PRE
890     CLASS="PROGRAMLISTING"
891     >SDL_Event user_event;
892    
893     user_event.type=SDL_USEREVENT;
894     user_event.user.code=2;
895     user_event.user.data1=NULL;
896     user_event.user.data2=NULL;
897     SDL_PushEvent(&#38;user_event);</PRE
898     ></P
899     ></DIV
900     ><DIV
901     CLASS="REFSECT1"
902     ><A
903     NAME="AEN3942"
904     ></A
905     ><H2
906     >See Also</H2
907     ><P
908     ><A
909     HREF="sdlpollevent.html"
910     ><TT
911     CLASS="FUNCTION"
912     >SDL_PollEvent</TT
913     ></A
914     >,
915     <A
916     HREF="sdlpushevent.html"
917     ><TT
918     CLASS="FUNCTION"
919     >SDL_PushEvent</TT
920     ></A
921     >,
922     <A
923     HREF="sdlpeepevents.html"
924     ><TT
925     CLASS="FUNCTION"
926     >SDL_PeepEvents</TT
927     ></A
928     ></P
929     ></DIV
930     ><DIV
931     CLASS="NAVFOOTER"
932     ><HR
933     ALIGN="LEFT"
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935     SUMMARY="Footer navigation table"
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943     ALIGN="left"
944     VALIGN="top"
945     ><A
946     HREF="eventstructures.html"
947     ACCESSKEY="P"
948     >Prev</A
949     ></TD
950     ><TD
951     WIDTH="34%"
952     ALIGN="center"
953     VALIGN="top"
954     ><A
955     HREF="index.html"
956     ACCESSKEY="H"
957     >Home</A
958     ></TD
959     ><TD
960     WIDTH="33%"
961     ALIGN="right"
962     VALIGN="top"
963     ><A
964     HREF="sdlactiveevent.html"
965     ACCESSKEY="N"
966     >Next</A
967     ></TD
968     ></TR
969     ><TR
970     ><TD
971     WIDTH="33%"
972     ALIGN="left"
973     VALIGN="top"
974     >SDL Event Structures.</TD
975     ><TD
976     WIDTH="34%"
977     ALIGN="center"
978     VALIGN="top"
979     ><A
980     HREF="eventstructures.html"
981     ACCESSKEY="U"
982     >Up</A
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988     >SDL_ActiveEvent</TD
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994     >

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