xwininfo 

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xwininfo: Window id: 0x6400016 "commander – Dolphin"

  Absolute upper-left X:  1082
  Absolute upper-left Y:  1013
  Relative upper-left X:  0
  Relative upper-left Y:  0
  Width: 1916
  Height: 462
  Depth: 24
  Visual: 0x21
  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:  +1082+1013  -1922+1013  -1922-445  +1082-445
  -geometry 1916x462+1080+990