linux key faker

#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <termios.h>
#include <unistd.h>
#include <xdo.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>

int main()
{
    sleep(1); //wait 1 second
    printf("creating xdo...\n");
    xdo_t* myXdo = xdo_new(NULL);
    printf("xdo created...\n");

    printf("getting display...\n");
    // Obtain the X11 display.
        Display *display = XOpenDisplay(0);
        if(display == NULL)
        {
            printf("could not open display, exiting...\n");
            return -1;
        }

    printf("getting root window...\n");
    // Window focus
        int revert;
        Window winFocus;

    while(1)
    {
        XGetInputFocus(display, &winFocus, &revert);
        xdo_keysequence_up(myXdo, winFocus, "A",  100);
        xdo_keysequence_down(myXdo, winFocus, "A",  100);
        usleep(1000 * 1000);
    }

    printf("exiting...\n");
    XCloseDisplay(display);
    xdo_free(myXdo);
    return 0;
}