Mine
public text v1 · immutable#include <stdio.h>#include <X11/Xlib.h>int main(void){ Display *dpy; unsigned char map_ret[256]; int nbut; if(!(dpy = XOpenDisplay(0))) { fprintf(stderr, "failed to connect to the X server\n"); return 1; } nbut = XGetPointerMapping(dpy, map_ret, 256); printf("number of mouse buttons: %d\n", nbut); XCloseDisplay(dpy); return 0;}