Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_JoyBallEvent.3 @ 129:db0bee1c5845
Applied Maxim's patch for VGL detection on FreeBSD
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 31 Jul 2001 04:06:56 +0000 |
| parents | 55f1f1b3e27d |
| children | e5bc29de3f0a |
| rev | line source |
|---|---|
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55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
1 .TH "SDL_JoyBallEvent" "3" "Sun 10 Jun 2001, 19:40" "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 | |
|
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
36 ...\" created by instant / docbook-to-man, Sun 10 Jun 2001, 19:40 |