[PATCH:xev] Add -root option to specify monitoring root window events.

[Peter Hutterer]

On Sat, Jan 16, 2010 at 07:09:28PM +0100, Kim Woelders wrote:
> 
> Signed-off-by: Kim Woelders <kim at woelders.dk>
> 
> diff --git a/xev.c b/xev.c
> index 16d45aa..b422aa2 100644
> --- a/xev.c
> +++ b/xev.c
> @@ -690,6 +690,7 @@ usage (void)
>  "    -bw pixels                          border width in pixels",
>  "    -bs {NotUseful,WhenMapped,Always}   backingstore attribute",
>  "    -id windowid                        use existing window",
> +"    -root                               use root window",
>  "    -s                                  set save-unders attribute",
>  "    -name string                        window name",
>  "    -rv                                 reverse video",
> @@ -739,6 +740,7 @@ main (int argc, char **argv)
>      int done;
>      char *name = "Event Tester";
>      Bool reverse = False;
> +    Bool use_root = False;
>      unsigned long back, fore;
>      XIM xim;
>      XIMStyles *xim_styles;
> @@ -793,8 +795,17 @@ main (int argc, char **argv)
>  		if (++i >= argc) usage ();
>  		name = argv[i];
>  		continue;
> -	      case 'r':			/* -rv */
> -		reverse = True;
> +	      case 'r':
> +		switch (arg[2]) {
> +		  case 'o':		/* -root */
> +		    use_root = True;
> +		    continue;
> +		  case 'v':		/* -rv */
> +		    reverse = True;
> +		    continue;
> +		  default:
> +		    usage ();
> +		}
>  		continue;
>  	      case 's':			/* -s */
>  		attr.save_under = True;
> @@ -865,6 +876,9 @@ main (int argc, char **argv)
>  			   FocusChangeMask | PropertyChangeMask |
>  			   ColormapChangeMask | OwnerGrabButtonMask;
>  
> +    if (use_root)
> +	w = RootWindow(dpy, screen);
> +
>      if (w) {
>  	XGetWindowAttributes(dpy, w, &wattr);
>  	if (wattr.all_event_masks & ButtonPressMask)
> diff --git a/xev.man b/xev.man
> index dcb1e3a..136a01a 100644
> --- a/xev.man
> +++ b/xev.man
> @@ -9,7 +9,7 @@ xev - print contents of X events
>  .B "xev"
>  [\-display \fIdisplayname\fP] [\-geometry \fIgeom\fP]
>  [\-bw \fIpixels\fP] [\-bs \fI{NotUseful,WhenMapped,Always}\fP]
> -[\-id \fIwindowid\fP] [\-s] [\-name \fIstring\fP] [\-rv]
> +[\-id \fIwindowid\fP] [\-root] [\-s] [\-name \fIstring\fP] [\-rv]
>  .SH DESCRIPTION
>  .PP
>  \fIXev\fP creates a window and then asks the X server to send it
> @@ -40,6 +40,10 @@ means that the xev process will redraw its contents itself, as necessary.
>  This option specifies that the window with the given id should be
>  monitored, instead of creating a new window.
>  .TP 8
> +.B \-root
> +This option specifies that the root window should be
> +monitored, instead of creating a new window.
> +.TP 8
>  .B \-s
>  This option specifies that save-unders should be enabled on the window. Save
>  unders are similar to backing store, but they refer rather to the saving of
> -- 
> 1.6.6

pushed, thanks.
 
Cheers,
  Peter