How to set mouse cursor position in C on linux?

Question

how can I set the mouse cursor position in an X window using a C program under Linux? thanks :) (like setcursorpos() in WIN)

EDIT: I've tried this code, but doesn't work:

#include <curses.h>

main(){
 move(100, 100);
 refresh();
}

Answer 1

12.4 - Moving the Pointer

Although movement of the pointer normally should be left to the control of the end user, sometimes it is necessary to move the pointer to a new position under program control.

To move the pointer to an arbitrary point in a window, use XWarpPointer().

---

Example:

Display *dpy; Window root_window;  dpy = XOpenDisplay(0); root_window = XRootWindow(dpy, 0); XSelectInput(dpy, root_window, KeyReleaseMask); XWarpPointer(dpy, None, root_window, 0, 0, 0, 0, 100, 100); XFlush(dpy); // Flushes the output buffer, therefore updates the cursor's position. Thanks to Achernar. 

Answer 2

This is old, but in case someone else comes across this issue. The answer provided by tusbar was correct but the command XFlush(dpy) must be added at the end to update the cursor's position. The libraries needed are: X11/X.h, X11/Xlib.h, X11/Xutil.h.

int main(int argc, char *argv[]){
         //Get system window
         Display *dpy;
         Window root_window;

         dpy = XOpenDisplay(0);
         root_window = XRootWindow(dpy, 0);
         XSelectInput(dpy, root_window, KeyReleaseMask);

         XWarpPointer(dpy, None, root_window, 0, 0, 0, 0, 100, 100);

         XFlush(dpy);

         return 0;}

PS: You can use this command to build the code gcc main.c -lX11