Enable/Disable Linux mousekeys

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gcc mousekey.c -lX11 -IX11

打开mousekeys运行./a.out

关闭mousekeys运行./a.out 1,这里在a.out后面随便加一个参数就可以了，因为判断条件为 if(argc < 2)

/*********source code***************/

#include <stdio.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/XKBlib.h>

int main(int argc, char *argv[])
{
Display *display;
unsigned long which;
XkbDescPtr xkb;
unsigned int status_mask = 0;
unsigned short mk_delay = 160;
unsigned short mk_interval = 50;
unsigned short mk_time_to_max = 30;
unsigned short mk_max_speed = 50;
short mk_curve = 0;
Status S;

status_mask = XkbMouseKeysMask;

display = XOpenDisplay(NULL);
xkb = XkbGetMap(display, 0, XkbUseCoreKbd);
if((int)xkb == BadAlloc || xkb == NULL)
{
  printf("ERROR: unable to allocate storege./n");
  return 1;
}

if((S = XkbGetControls(display, XkbAllControlsMask, xkb)) != Success)
{
  if(S == BadAlloc)
   printf("ERROR: Unable to allocate storage./n");
  else if(S == BadMatch)
   printf("ERROR: Unable to query state of keyboard./n");
  else printf("ERROR: Unable to get state of keyboard controls. /n");
   return 2;
}

unsigned int changeEnabled = 0;
unsigned int enabled = 0;

changeEnabled |=status_mask;
if(argc < 2)
enabled |= status_mask;

if(xkb->ctrls)
{
  xkb->ctrls->enabled_ctrls &=~changeEnabled;
  xkb->ctrls->enabled_ctrls |=(changeEnabled & enabled);
  xkb->ctrls->mk_delay = mk_delay;
  xkb->ctrls->mk_interval = mk_interval;
  xkb->ctrls->mk_time_to_max = mk_time_to_max;
  xkb->ctrls->mk_max_speed = mk_max_speed;
  xkb->ctrls->mk_curve = mk_curve;
}
else
{
  printf("ERROR: Unable to get state of keyboard controls./n");
  return 3;
}

if(!XkbSetControls(display, status_mask | XkbControlsEnabledMask, xkb))
{
  printf("ERROR: Unable to set state of keyboard controls./n");
  return 4;
}

XkbGetControls(display, XkbAllControlsMask, xkb);
XkbFreeKeyboard(xkb, status_mask, True);
XCloseDisplay(display);
return 0;
}