fixed misappearance of iconified windows on SIGKILL

main.c

@@ -111,6 +111,24 @@ initfont(const char *fontstr) {
 	dc.font.height = dc.font.ascent + dc.font.descent;
 }
 
+static long
+getstate(Window w) {
+	int format, status;
+	long result = -1;
+	unsigned char *p = NULL;
+	unsigned long n, extra;
+	Atom real;
+
+	status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
+			&real, &format, &n, &extra, (unsigned char **)&p);
+	if(status != Success)
+		return -1;
+	if(n != 0)
+		result = *p;
+	XFree(p);
+	return result;
+}
+
 static void
 scan(void) {
 	unsigned int i, num;
@@ -123,7 +141,14 @@ scan(void) {
 			if(!XGetWindowAttributes(dpy, wins[i], &wa)
 			|| wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
 				continue;
-			if(wa.map_state == IsViewable)
+			if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
+				manage(wins[i], &wa);
+		}
+		for(i = 0; i < num; i++) { /* now the transients */
+			if(!XGetWindowAttributes(dpy, wins[i], &wa))
+				continue;
+			if(XGetTransientForHint(dpy, wins[i], &d1)
+			&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
 				manage(wins[i], &wa);
 		}
 	}

screen.c

@@ -60,7 +60,7 @@ setdwmprops(void) {
 	for(i = 0; i < ntags && i < sizeof prop - 1; i++)
 		prop[i] = seltags[i] ? '1' : '0';
 	if(i < sizeof prop - 1)
-		prop[i++] = (char)ltidx;
+		prop[i++] = (char)ltidx + '0';
 	prop[i] = '\0';
 	XChangeProperty(dpy, root, dwmprops, XA_STRING, 8,
 			PropModeReplace, (unsigned char *)prop, i);
@@ -223,8 +223,8 @@ getdwmprops(void) {
 		for(i = 0; i < ntags && i < sizeof prop - 1 && prop[i] != '\0'; i++)
 			seltags[i] = prop[i] == '1';
 		if(i < sizeof prop - 1 && prop[i] != '\0') {
-			if(prop[i] < nlayouts)
-				ltidx = prop[i];
+			if((unsigned int)(prop[i] - '0') < nlayouts)
+				ltidx = prop[i] - '0';
 		}
 	}
 }