Mercurial > sdl-ios-xcode
view test/testmmousetablet.c @ 3238:96492d29034a
David Carre to Sam
When i call the "SDL_Quit()" function, it call the func "SDL_QuitSubSystem(SDL_INIT_EVERYTHING)", which call the "SDL_VideoQuit()" function.
It's where i'm lost, this function "SDL_VideoQuit()" will recall the "SDL_Quit()" function (i don't find where it is called), which in turn recall the "SDL_QuitSubSystem(SDL_INIT_EVERYTHING)", which in turn recall "SDL_VideoQuit()", which cause a "double free" seg fault since it has been already called.
I have set the num_displays to 0 instead of 1, so it wont free it twice in the videoquit function loop.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 18 Aug 2009 03:26:53 +0000 |
parents | ae653575d4af |
children | 975fd903466b |
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#include <stdio.h> #include "SDL.h" SDL_Surface *screen; int quit = 0; int main() { 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; }