text: //
  // This script uses the XTestFakeKeyEvent method from the XTest extension of the Xlib library
  // to send key events to the running x-server.
  //
  
  #include <X11/Xlib.h>
  #include <X11/extensions/XTest.h>
  #include <chrono>
  #include <thread>
  
  int main(){
  
      // open connection to the x server
      Display *display = XOpenDisplay(0);
      if (display == NULL)
          return -1;
  
      // sleep for 5 seconds
      std::this_thread::sleep_for(std::chrono::seconds(5));
  
      // send a key press and key release event for key 53 ('x' character)
      XTestFakeKeyEvent(display, 53, True, 0);
      XTestFakeKeyEvent(display, 53, False, 0);
  
      // flush to ensure that the key events are sent to the server
      XFlush(display);
  
      // close connection
      XCloseDisplay(display);
  };
  