diff --git a/7.3.031 b/7.3.031
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+To: vim-dev@vim.org
+Subject: Patch 7.3.031
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.031
+Problem:    Can't pass the X window ID to another application.
+Solution:   Add v:windowid. (Christian J. Robinson, Lech Lorens)
+Files:	    runtime/doc/eval.txt, src/eval.c, src/gui.c, src/vim.h,
+	    src/os_unix.c
+
+
+*** ../vim-7.3.030/runtime/doc/eval.txt	2010-08-15 21:57:15.000000000 +0200
+--- runtime/doc/eval.txt	2010-10-20 19:11:03.000000000 +0200
+***************
+*** 1657,1662 ****
+--- 1657,1667 ----
+  					*v:warningmsg* *warningmsg-variable*
+  v:warningmsg	Last given warning message.  It's allowed to set this variable.
+  
++ 					*v:windowid* *windowid-variable*
++ v:windowid	When any X11 based GUI is running or when running in a
++ 		terminal and Vim connects to the X server (|-X|) this will be
++ 		set to the window ID.  Otherwise the value is zero.
++ 
+  ==============================================================================
+  4. Builtin Functions					*functions*
+  
+*** ../vim-7.3.030/src/eval.c	2010-10-20 17:44:01.000000000 +0200
+--- src/eval.c	2010-10-20 18:48:40.000000000 +0200
+***************
+*** 362,367 ****
+--- 362,368 ----
+      {VV_NAME("operator",	 VAR_STRING), VV_RO},
+      {VV_NAME("searchforward",	 VAR_NUMBER), 0},
+      {VV_NAME("oldfiles",	 VAR_LIST), 0},
++     {VV_NAME("windowid",	 VAR_NUMBER), VV_RO},
+  };
+  
+  /* shorthand */
+*** ../vim-7.3.030/src/gui.c	2010-09-29 17:26:57.000000000 +0200
+--- src/gui.c	2010-10-20 19:15:56.000000000 +0200
+***************
+*** 105,112 ****
+--- 105,122 ----
+  
+  #if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_X11)
+      if (gui.in_use)
++     {
++ # ifdef FEAT_EVAL
++ 	Window	x11_window;
++ 	Display	*x11_display;
++ 
++ 	if (gui_get_x11_windis(&x11_window, &x11_display) == OK)
++ 	    set_vim_var_nr(VV_WINDOWID, (long)x11_window);
++ # endif
++ 
+  	/* Display error messages in a dialog now. */
+  	display_errors();
++     }
+  #endif
+  
+  #if defined(MAY_FORK) && !defined(__QNXNTO__)
+*** ../vim-7.3.030/src/vim.h	2010-10-10 17:08:28.000000000 +0200
+--- src/vim.h	2010-10-20 18:48:40.000000000 +0200
+***************
+*** 1842,1848 ****
+  #define VV_OP		52
+  #define VV_SEARCHFORWARD 53
+  #define VV_OLDFILES	54
+! #define VV_LEN		55	/* number of v: vars */
+  
+  #ifdef FEAT_CLIPBOARD
+  
+--- 1842,1849 ----
+  #define VV_OP		52
+  #define VV_SEARCHFORWARD 53
+  #define VV_OLDFILES	54
+! #define VV_WINDOWID	55
+! #define VV_LEN		56	/* number of v: vars */
+  
+  #ifdef FEAT_CLIPBOARD
+  
+*** ../vim-7.3.030/src/os_unix.c	2010-10-13 16:22:05.000000000 +0200
+--- src/os_unix.c	2010-10-20 19:15:46.000000000 +0200
+***************
+*** 1738,1743 ****
+--- 1738,1748 ----
+      }
+      if (x11_window == 0 || x11_display == NULL)
+  	return (result = FAIL);
++ 
++ # ifdef FEAT_EVAL
++     set_vim_var_nr(VV_WINDOWID, (long)x11_window);
++ # endif
++ 
+      return (result = OK);
+  }
+  
+*** ../vim-7.3.030/src/version.c	2010-10-20 17:44:01.000000000 +0200
+--- src/version.c	2010-10-20 19:11:31.000000000 +0200
+***************
+*** 716,717 ****
+--- 716,719 ----
+  {   /* Add new patch number below this line */
++ /**/
++     31,
+  /**/
+
+-- 
+What the word 'politics' means: 'Poli' in Latin meaning 'many' and 'tics'
+meaning 'bloodsucking creatures'.
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
+///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\        download, build and distribute -- http://www.A-A-P.org        ///
+ \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///