annotate docs/man3/SDL_CDOpen.3 @ 615:7ec821f3cbd0

Date: Thu, 17 Apr 2003 23:27:34 -0400 From: Darrell Walisser Subject: Yet another OS X cursor bug The synopsis: 1. Call SDL_ShowCursor(0); 2. Call SDL_SetVideoMode(); 3. Call SDL_GetEvent(); 3. Call SDL_ShowCursor(1); The result: Sometimes the cursor doesn't come back! Ack! Oddly enough, it does come back when mousing over the dock or clicking in the menu bar. But that's besides the point. The reason why this is happening is a flaw in the handling of activation/deactivation events. The short explanation is that the HideCursor() and ShowCursor() calls must be balanced, but if the cursor was initially hidden, HideCursor() was called again on the activate event - so now the next ShowCursor() fails (as does the next, and the next, for some reason). So, here's the patch. All it does is keep track of the HideCursor()/ShowCursor() calls so that they will always be balanced.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 20 Apr 2003 05:41:16 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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e5bc29de3f0a Updated from the SDL Documentation Project
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1 .TH "SDL_CDOpen" "3" "Tue 11 Sep 2001, 22:58" "SDL" "SDL API Reference"
0
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2 .SH "NAME"
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3 SDL_CDOpen\- Opens a CD-ROM drive for access\&.
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4 .SH "SYNOPSIS"
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5 .PP
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6 \fB#include "SDL\&.h"
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7 .sp
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8 \fBSDL_CD *\fBSDL_CDOpen\fP\fR(\fBint drive\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 Opens a CD-ROM drive for access\&. It returns a \fI\fBSDL_CD\fR\fR structure on success, or \fBNULL\fP if the drive was invalid or busy\&. This newly opened CD-ROM becomes the default CD used when other CD functions are passed a \fBNULL\fP CD-ROM handle\&.
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12 .PP
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13 Drives are numbered starting with 0\&. Drive 0 is the system default CD-ROM\&.
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14 .SH "EXAMPLES"
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15 .PP
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16 .nf
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17 \f(CWSDL_CD *cdrom;
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18 int cur_track;
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19 int min, sec, frame;
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20 SDL_Init(SDL_INIT_CDROM);
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21 atexit(SDL_Quit);
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22
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23 /* Check for CD drives */
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24 if(!SDL_CDNumDrives()){
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25 /* None found */
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26 fprintf(stderr, "No CDROM devices available
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27 ");
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28 exit(-1);
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29 }
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30
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31 /* Open the default drive */
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32 cdrom=SDL_CDOpen(0);
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33
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34 /* Did if open? Check if cdrom is NULL */
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35 if(!cdrom){
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36 fprintf(stderr, "Couldn\&'t open drive: %s
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37 ", SDL_GetError());
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38 exit(-1);
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39 }
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40
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41 /* Print Volume info */
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42 printf("Name: %s
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43 ", SDL_CDName(0));
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44 printf("Tracks: %d
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45 ", cdrom->numtracks);
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46 for(cur_track=0;cur_track < cdrom->numtracks; cur_track++){
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47 FRAMES_TO_MSF(cdrom->track[cur_track]\&.length, &min, &sec, &frame);
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48 printf(" Track %d: Length %d:%d
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49 ", cur_track, min, sec);
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50 }
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51
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52 SDL_CDClose(cdrom);\fR
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53 .fi
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54 .PP
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55 .SH "SEE ALSO"
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56 .PP
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57 \fI\fBSDL_CD\fR\fR, \fI\fBSDL_CDtrack\fR\fR, \fI\fBSDL_CDClose\fP\fR
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58 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:58