Ubuntu Get Window Position Information; xwininfo

xwininfo

xwininfo: Please select the window about which you
          would like information by clicking the
          mouse in that window.

xwininfo: Window id: 0x20ffa54 "Dark Launch - Mozilla Firefox"

  Absolute upper-left X:  1039
  Absolute upper-left Y:  48
  Relative upper-left X:  1039
  Relative upper-left Y:  48
  Width: 800
  Height: 600
  Depth: 24
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x20 (installed)
  Bit Gravity State: NorthWestGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +1039+48  -865+48  -865-402  +1039-402
  -geometry 800x600+1039+48