Index: dzen.h
===================================================================
--- dzen.h	(revision 267)
+++ dzen.h	(working copy)
@@ -125,6 +125,7 @@
 
 	/* sensitive areas */
 	Window sa_win;
+	Window parent;
 
 	const char *fnt;
 	const char *bg;
Index: main.c
===================================================================
--- main.c	(revision 267)
+++ main.c	(working copy)
@@ -499,8 +499,10 @@
 	XRectangle si;
 	XClassHint *class_hint;
 
-	root = RootWindow(dzen.dpy, dzen.screen);
-
+	if(dzen.parent)
+	    root = dzen.parent;
+	else
+	    root = RootWindow(dzen.dpy, dzen.screen);
 	/* style */
 	if((dzen.norm[ColBG] = getcolor(dzen.bg)) == ~0lu)
 		eprint("dzen: error, cannot allocate color '%s'\n", dzen.bg);
@@ -1001,6 +1003,12 @@
 		else if(!strncmp(argv[i], "-e", 3)) {
 			if(++i < argc) action_string = argv[i];
 		}
+		else if(!strncmp(argv[i], "-em", 3)) {
+			if(++i < argc)
+			    sscanf(argv[i], "0x%x", &dzen.parent);
+			else
+			    dzen.parent = 0;
+		}
 		else if(!strncmp(argv[i], "-title-name", 12)) {
 			if(++i < argc) dzen.title_win.name = argv[i];
 		}