/* * This program will unlock your pointer if it won't move anymore. This * usually happens when a program crashes while the mouse was grabbed. * * Link with SDL. (http://www.libsdl.org/) * * gcc -o umouse umouse.c `sdl-config --cflags` `sdl-config --libs` * * written by Ryan C. Gordon (icculus@lokigames.com) */#include <stdio.h>#include <stdlib.h>#include "SDL.h"void adjust_gamma(int argc, char **argv){ int i; double gamma; for (i = 0; i < argc - 1; i++) { if (strcasecmp(argv[i], "--gamma") == 0) { gamma = atof(argv[i + 1]); if (gamma == 0.0) fprintf(stderr, "Cowardly refusing to set gamma to 0.0...\n"); else { if (SDL_SetGamma(gamma, gamma, gamma) == -1) fprintf(stderr, "SDL_SetGamma() failed.\n"); } // else } // if } // for} // adjust_gammaint main(int argc, char **argv){ SDL_Event event; SDL_Init(SDL_INIT_VIDEO); SDL_SetVideoMode(640, 480, 16, 0); SDL_ShowCursor(0); SDL_WM_GrabInput(SDL_GRAB_ON); adjust_gamma(argc, argv); SDL_PumpEvents(); SDL_WM_GrabInput(SDL_GRAB_OFF); SDL_ShowCursor(1); SDL_Quit(); return(0);} // main// end of umouse.c ...