diff --git a/ldisc.c b/ldisc.c
index ceafa416..a149c6d0 100644
--- a/ldisc.c
+++ b/ldisc.c
@@ -73,6 +73,12 @@ void ldisc_send(char *buf, int len, int interactive)
 	ldisc_update(ECHOING, EDITING);
 	return;
     }
+    /*
+     * Notify the front end that something was pressed, in case
+     * it's depending on finding out (e.g. keypress termination for
+     * Close On Exit). 
+     */
+    frontend_keypress();
     /*
      * Less than zero means null terminated special string.
      */
diff --git a/putty.h b/putty.h
index 99b19180..3594ceb3 100644
--- a/putty.h
+++ b/putty.h
@@ -429,6 +429,7 @@ void beep(int);
 void begin_session(void);
 void sys_cursor(int x, int y);
 void request_paste(void);
+void frontend_keypress(void);
 #define OPTIMISE_IS_SCROLL 1
 
 void set_iconic(int iconic);
diff --git a/window.c b/window.c
index abbfdd89..1aa20908 100644
--- a/window.c
+++ b/window.c
@@ -4553,3 +4553,14 @@ void flip_full_screen()
 	ShowWindow(hwnd, SW_MAXIMIZE);
     }
 }
+
+void frontend_keypress(void)
+{
+    /*
+     * Keypress termination in non-Close-On-Exit mode is not
+     * currently supported in PuTTY proper, because the window
+     * always has a perfectly good Close button anyway. So we do
+     * nothing here.
+     */
+    return;
+}