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Thread: Ubuntu Minimal + OpenBox, XWarpPointer not working

  1. #1
    Join Date
    Apr 2009

    Question Ubuntu Minimal + OpenBox, XWarpPointer not working

    Hi Guys,

    Apologies if this isn't the best place for this post, but it seemed the closest match..?

    I am working on C program to control the mouse using hand gestures (and my webcam).. I have everything working, however when I call XWarpPointer nothing happens (no errors either!)

    I thought it might be my code (available at, so I installed xdotools and called:

    xdotools movemouse 10 10

    ..but nothing happened?! I believe that OpenBox (my window manager) is running on top of X11, so why wouldn't this work? I even tried running it as root (to see if it was a permissions problem) but that didn't work either.

    I may also be worth noting that I am running the OS in a VirtualBox, hosted on a mac (sorry my setup isn't very simple?!!)

    Could anyone suggest why I am unable to control the position of my mouse using X11 commands (either from my program or from xdotools)?

    The code snippet I am using is basically:

    Display *xdisplay1 = XOpenDisplay(NULL);
    if (!xdisplay1) exit(1);
    XWarpPointer(xdisplay1, None, None, 0, 0, 0, 0, 10, 10);

    It compiles fine, and xdisplay1 is definitely populated?!! HELP!

    Many Thanks,

  2. #2
    Join Date
    Apr 2010

    Re: Ubuntu Minimal + OpenBox, XWarpPointer not working

    Found this post while digging into this exact problem

    This is a known issue with VirtualBox. Pointer movement initiated by the guest OS isn't forwarded to the host os, even in full screen mode.

    This is the best response I could find on the topic:


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