From 58c840dcc1810bfc5a7334fe29058d2b2c97cdaf Mon Sep 17 00:00:00 2001
From: jacob <jacob@cda61777-01e9-0310-a592-d414129be87e>
Date: Sun, 18 Feb 2007 14:02:39 +0000
Subject: [PATCH] Ctrl-Break now sends a Break signal (previously it was
 equivalent to Ctrl-C).

git-svn-id: svn://svn.tartarus.org/sgt/putty@7295 cda61777-01e9-0310-a592-d414129be87e
---
 doc/using.but    |  3 +++
 unix/gtkwin.c    |  9 ++++-----
 windows/window.c | 11 ++++++-----
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/doc/using.but b/doc/using.but
index 17fdce5f..adf5ee9a 100644
--- a/doc/using.but
+++ b/doc/using.but
@@ -128,6 +128,9 @@ connection in addition to normal data. Their precise effect is usually
 up to the server. Currently only Telnet, SSH, and serial connections
 have special commands.
 
+The \q{break} signal can also be invoked from the keyboard with
+\i{Ctrl-Break}.
+
 The following \I{Telnet special commands}special commands are
 available in Telnet:
 
diff --git a/unix/gtkwin.c b/unix/gtkwin.c
index 816211a5..03ecc35a 100644
--- a/unix/gtkwin.c
+++ b/unix/gtkwin.c
@@ -663,13 +663,12 @@ gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
 	    end = 2;
 	}
 
-	/* Control-Break is the same as Control-C */
+	/* Control-Break sends a Break special to the backend */
 	if (event->keyval == GDK_Break &&
 	    (event->state & GDK_CONTROL_MASK)) {
-	    output[1] = '\003';
-	    use_ucsoutput = FALSE;
-	    end = 2;
-	    special = TRUE;
+	    if (inst->back)
+		inst->back->special(inst->backhandle, TS_BRK);
+	    return TRUE;
 	}
 
 	/* We handle Return ourselves, because it needs to be flagged as
diff --git a/windows/window.c b/windows/window.c
index ceeaa767..f654d2ad 100644
--- a/windows/window.c
+++ b/windows/window.c
@@ -3566,8 +3566,9 @@ int char_width(Context ctx, int uc) {
 
 /*
  * Translate a WM_(SYS)?KEY(UP|DOWN) message into a string of ASCII
- * codes. Returns number of bytes used or zero to drop the message
- * or -1 to forward the message to windows.
+ * codes. Returns number of bytes used, zero to drop the message,
+ * -1 to forward the message to Windows, or another negative number
+ * to indicate a NUL-terminated "special" string.
  */
 static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
 			unsigned char *output)
@@ -3987,9 +3988,9 @@ static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
 	    return p - output;
 	}
 	if (wParam == VK_CANCEL && shift_state == 2) {	/* Ctrl-Break */
-	    *p++ = 3;
-	    *p++ = 0;
-	    return -2;
+	    if (back)
+		back->special(backhandle, TS_BRK);
+	    return 0;
 	}
 	if (wParam == VK_PAUSE) {      /* Break/Pause */
 	    *p++ = 26;
-- 
2.11.0