您可以从X11获取初始位置，并使用相对坐标来跟踪指针：
#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <linux/input.h>#include <fcntl.h>#include <X11/Xlib.h>#define MOUSEFILE "/dev/input/event6"int main(){ int fd; struct input_event ie; Display *dpy; Window root, child; int rootX, rootY, winX, winY; unsigned int mask; dpy = XOpenDisplay(NULL); XQueryPointer(dpy,DefaultRootWindow(dpy),&root,&child, &rootX,&rootY,&winX,&winY,&mask); if((fd = open(MOUSEFILE, O_RDONLY)) == -1) { perror("opening device"); exit(EXIT_FAILURE); } while(read(fd, &ie, sizeof(struct input_event))) { if (ie.type == 2) { if (ie.pre == 0) { rootX += ie.value; } else if (ie.pre == 1) { rootY += ie.value; } printf("time%ld.%06ldtx %dty %dn", ie.time.tv_sec, ie.time.tv_usec, rootX, rootY); } else if (ie.type == 1) { if (ie.pre == 272 ) { printf("Mouse button "); if (ie.value == 0) printf("released!!n"); if (ie.value == 1) printf("pressed!!n"); } else { printf("time %ld.%06ldttype %dtpre %dtvalue %dn", ie.time.tv_sec, ie.time.tv_usec, ie.type, ie.pre, ie.value); } } return 0;}
