diff -ru slim-1.3.2_orig/panel.cpp slim-1.3.2/panel.cpp
--- slim-1.3.2_orig/panel.cpp	2010-07-08 07:04:10.000000000 +0200
+++ slim-1.3.2/panel.cpp	2010-08-22 20:25:01.000000000 +0200
@@ -351,6 +351,23 @@
     string formerString = "";
     
     XLookupString(&event.xkey, &ascii, 1, &keysym, &compstatus);
+    if (reinterpret_cast<XKeyEvent&>(event).state & ControlMask) {
+        switch(keysym){
+            case XK_s:
+                system(cfg->getOption("suspend_cmd").c_str());
+                action = Suspend;
+                return false;
+            case XK_h:
+                system(cfg->getOption("halt_cmd").c_str());
+                return false;
+            case XK_r:
+                system(cfg->getOption("reboot_cmd").c_str());
+                return false;
+            default:
+                break;
+        }
+    }
+
     switch(keysym){
         case XK_F1:
             SwitchSession();