set old WM_NAME content before exiting

diff --git a/slstatus.c b/slstatus.c
index 7babe1f..991334a 100644 (file)
--- a/slstatus.c
+++ b/slstatus.c
@@ -592,7 +592,7 @@ main(void)
 {
        size_t i;
        char status_string[4096];
-       char *res, *element;
+       char *res, *element, *status_old;
        struct arg argument;
        struct sigaction act;
 
@@ -603,6 +603,8 @@ main(void)
 
        dpy = XOpenDisplay(NULL);
 
+       XFetchName(dpy, DefaultRootWindow(dpy), &status_old);
+
        while (!done) {
                status_string[0] = '\0';
                for (i = 0; i < sizeof(args) / sizeof(args[0]); ++i) {
@@ -630,6 +632,9 @@ main(void)
                delay = 0;
        }
 
+       XStoreName(dpy, DefaultRootWindow(dpy), status_old);
+       XSync(dpy, False);
+
        XCloseDisplay(dpy);
 
        return 0;