linux获取当前图形界面的分辨率的小程序

#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <sys/ioctl.h>#include<errno.h>#include <linux/fb.h>#include<fcntl.h>int main(){int fd;struct fb_var_screeninfo vinfo;fd=open("/dev/fb0",O_RDONLY);if(fd<0){ perror("/dev/fb0"); exit(1);}ioctl(fd,FBIOGET_VSCREENINFO,&vinfo);printf("X=%d\nY=%d",vinfo.xres,vinfo.yres);return 0;}