jones@Serenity:~$ xwininfo

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

xwininfo: Window id: 0x3e00013 "Steam Login"

  Absolute upper-left X:  623
  Absolute upper-left Y:  223
  Relative upper-left X:  0
  Relative upper-left Y:  0
  Width: 128
  Height: 66
  Depth: 24
  Visual: 0x233
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x3e00012 (not 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:  +623+223  -615+223  -615-479  +623-479
  -geometry 128x66+623+223

jones@Serenity:~$ xprop steam
steam:  no such atom on any window.
jones@Serenity:~$ xprop
_NET_WM_ICON_GEOMETRY(CARDINAL) = 5, 617, 44, 44
WM_STATE(WM_STATE):
		window state: Normal
		icon window: 0x0
_NET_WM_DESKTOP(CARDINAL) = 0
_NET_WM_STATE(ATOM) = 
_NET_WM_ALLOWED_ACTIONS(ATOM) = _NET_WM_ACTION_MOVE, _NET_WM_ACTION_STICK, _NET_WM_ACTION_MINIMIZE, _NET_WM_ACTION_CLOSE, _NET_WM_ACTION_CHANGE_DESKTOP, _NET_WM_ACTION_ABOVE, _NET_WM_ACTION_BELOW
WM_NAME(UTF8_STRING) = "Steam Login"
WM_PROTOCOLS(ATOM): protocols  WM_DELETE_WINDOW
WM_HINTS(WM_HINTS):
		Client accepts input or input focus: True
_NET_WM_ICON(CARDINAL) = 	Icon (48 x 48):
	                  ░░▒▒▓▓▓▓▒▒░░                  
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	       ░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░       
	      ░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░      
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	     ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░░    ░░▓▓▓▓▓▓▓     
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	   ░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░     ░░     ▒▓▓▓▓▓░   
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	  ▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░  ░▒▓▒░░▒▓▒░  ░▓▓▓▓▓▒  
	  ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░  ░▓▒░    ░▓▒   ▒▓▓▓▓▓  
	 ░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░  ░▓░      ░▓░  ░▓▓▓▓▓░ 
	 ▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓   ▓▒        ▒▒  ░▓▓▓▓▓▒ 
	 ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒  ░▓░        ░▓   ▓▓▓▓▓▓ 
	░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░  ░▓░        ░▓   ▓▓▓▓▓▓░
	▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒    ▒▒        ▒▒  ░▓▓▓▓▓▓▒
	▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░    ░▓░      ░▓░  ░▓▓▓▓▓▓▒
	▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░      ▒▓░    ░▓▒   ▒▓▓▓▓▓▓▒
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	 ░▓▓▒░              ▒▒  ▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░ 
	  ▒▓▓▓▒▒            ▒▒ ░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒  
	  ░▓▓▓▓▓▓▒          ▒░ ░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░  
	   ▒▒▒▒▒▒▓░        ░▓  ▒▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒   
	   ░▒▒▒▒▒▓▒  ▒▒░ ░▒▓░ ░▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░   
	    ▒▒▒▒▒▒▓░  ░▒▒▒▒░  ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒    
	     ▒▒▒▒▒▒▒░        ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒     
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_MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x2, 0x0, 0x0, 0x0, 0x0
WM_CLASS(STRING) = "Steam", "Steam"
WM_NORMAL_HINTS(WM_SIZE_HINTS):
		user specified location: 0, 0
		user specified size: 128 by 66
		program specified minimum size: 128 by 66
		program specified maximum size: 128 by 66
jones@Serenity:~$