Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_JoyBallEvent.3 @ 1018:012af0b7e8e6
Date: Fri, 24 Dec 2004 23:32:06 -0500
From: Mike Frysinger
Subject: [SDL] minor fix for gcc-2.x building
in src/video/directfb/SDL_DirectFB_video.c, some variables are not declared at
the beginning of scope ... newer gcc's will accept this, but gcc-2.x does not
find attached a simple patch by Matt Taylor to resolve this
http://bugs.gentoo.org/show_bug.cgi?id=75392
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 27 Dec 2004 20:03:53 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
rev | line source |
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181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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1 .TH "SDL_JoyBallEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
3 SDL_JoyBallEvent\- Joystick trackball motion event structure | |
4 .SH "STRUCTURE DEFINITION" | |
5 .PP | |
6 .nf | |
7 \f(CWtypedef struct{ | |
8 Uint8 type; | |
9 Uint8 which; | |
10 Uint8 ball; | |
11 Sint16 xrel, yrel; | |
12 } SDL_JoyBallEvent;\fR | |
13 .fi | |
14 .PP | |
15 .SH "STRUCTURE DATA" | |
16 .TP 20 | |
17 \fBtype\fR | |
18 \fBSDL_JOYBALLMOTION\fP | |
19 .TP 20 | |
20 \fBwhich\fR | |
21 Joystick device index | |
22 .TP 20 | |
23 \fBball\fR | |
24 Joystick trackball index | |
25 .TP 20 | |
26 \fBxrel\fR, \fByrel\fR | |
27 The relative motion in the X/Y direction | |
28 .SH "DESCRIPTION" | |
29 .PP | |
30 \fBSDL_JoyBallEvent\fR is a member of the \fI\fBSDL_Event\fR\fR union and is used when an event of type \fBSDL_JOYBALLMOTION\fP is reported\&. | |
31 .PP | |
32 A \fBSDL_JOYBALLMOTION\fP event occurs when a user moves a trackball on the joystick\&. The field \fBwhich\fR is the index of the joystick that reported the event and \fBball\fR is the index of the trackball (for a more detailed explaination see the \fIJoystick section\fR)\&. Trackballs only return relative motion, this is the change in position on the ball since it was last polled (last cycle of the event loop) and it is stored in \fBxrel\fR and \fByrel\fR\&. | |
33 .SH "SEE ALSO" | |
34 .PP | |
35 \fI\fBSDL_Event\fR\fR, \fIJoystick Functions\fR, \fI\fBSDL_JoystickEventState\fP\fR, \fI\fBSDL_JoystickGetBall\fP\fR | |
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
36 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59 |