Mercurial > sdl-ios-xcode
view test/testmmousetablet.c @ 3496:78fc8ea578b2
Joe 2009-11-23 21:31:10 PST
If type is ::SDL_HAPTIC_CARTESIAN, direction is encoded by three positions
367 * (X axis, Y axis and Z axis (with 3 axes)). ::SDL_HAPTIC_CARTESIAN
uses
368 * the first three \c dir parameters. The cardinal directions would
be:
369 * - North: 0,-1, 0
370 * - East: -1, 0, 0
371 * - South: 0, 1, 0
372 * - West: 1, 0, 0
typedef struct SDL_HapticDirection
{
Uint8 type; /**< The type of encoding. */
Uint16 dir[3]; /**< The encoded direction. */
} SDL_HapticDirection;
An unsigned int can't store negative values and I don't see an alternate way to
encode them in the docs or source. The best I have been able to come up with is
using a negative magnitude for the effect but this will only get me 2 of the 4
quadrants in the plane for 2d effects. I looked at the win32 and linux
implementations and I believe is is safe to use signed ints in the direction
struct. I am unfamiliar with the darwin haptics API so I don't know if it is
safe.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 27 Nov 2009 19:29:27 +0000 |
parents | 975fd903466b |
children |
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#include <stdio.h> #include "SDL.h" SDL_Surface *screen; int quit = 0; int main(int argc, char *argv[]) { SDL_Event event; int mice; int i; printf("Initing...\n"); if (SDL_Init(0) != 0) { return 1; } if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) { return 1; } else { screen = SDL_SetVideoMode(640, 480, 32, SDL_DOUBLEBUF); } mice = SDL_GetNumMice(); printf("%d pointing devices found\n", mice); for (i = 0; i < mice; ++i) { printf("device index: %d name:%s\n", i, SDL_GetMouseName(i)); } while (quit != 1) { if (SDL_PollEvent(&event) == 0) { } else { switch (event.type) { case SDL_MOUSEMOTION: printf ("Device id: %d x: %d y: %d relx: %d rely: %d pressure: %d\n \ pressure_max: %d pressure_min: %d current cursor:%d\n", event.motion.which, event.motion.x, event.motion.y, event.motion.xrel, event.motion.yrel, event.motion.pressure, event.motion.pressure_max, event.motion.pressure_min, event.motion.cursor); break; case SDL_PROXIMITYIN: printf("proximity in id: %d x: %d y: %d\n", (int) event.proximity.which, event.proximity.x, event.proximity.y); break; case SDL_PROXIMITYOUT: printf("proximity out id: %d x: %d y: %d\n", (int) event.proximity.which, event.proximity.x, event.proximity.y); break; case SDL_MOUSEBUTTONDOWN: printf("mouse button down id: %d button:%d\n", event.button.which, event.button.button); break; case SDL_MOUSEBUTTONUP: printf("mouse button up id: %d button: %d\n", event.button.which, event.button.button); break; case SDL_QUIT: printf("Quitting\n"); SDL_QuitSubSystem(SDL_INIT_VIDEO); SDL_Quit(); quit = 1; break; } } } return 0; }