* fhandler.h (fhandler_console::dwBufferSize): Delete.

(fhandler_console::dwCursorPosition): Ditto.
(fhandler_console::wAttributes): Ditto.
(fhandler_console::b): New field encompassing previously disparate screen
buffer info.
(fhandler_console::save_bufsize): Rename from savebufsiz
(fhandler_console::save_buf): Rename sfrom savebuf.
(fhandler_console::save_cursor): New field.
(fhandler_console::save_restore): New function.
(fhandler_console::con): Rename from dev_state.
(fhandler_console::focus_aware): Accommodate name change.
* fhandler_console.cc: Use 'b' field of dev_console throughout instead of
disparate names.  Accommodate dev_state -> con rename.
(dev_state:save_restore): New function.  Attempt to save the entire screen
buffer rather than just the visible part.  Clear the buffer when saving, like
Linux.
(fhandler_console::char_command): Use con.save_restore() for Save/restore
screen sequence.

winsup/cygwin/ChangeLog

@@ -1,3 +1,24 @@
+2014-03-09  Christopher Faylor  <me.cygwin2014@cgf.cx>
+
+	* fhandler.h (fhandler_console::dwBufferSize): Delete.
+	(fhandler_console::dwCursorPosition): Ditto.
+	(fhandler_console::wAttributes): Ditto.
+	(fhandler_console::b): New field encompassing previously disparate
+	screen buffer info.
+	(fhandler_console::save_bufsize): Rename from savebufsiz
+	(fhandler_console::save_buf): Rename sfrom savebuf.
+	(fhandler_console::save_cursor): New field.
+	(fhandler_console::save_restore): New function.
+	(fhandler_console::con): Rename from dev_state.
+	(fhandler_console::focus_aware): Accommodate name change.
+	* fhandler_console.cc: Use 'b' field of dev_console throughout instead
+	of disparate names.  Accommodate dev_state -> con rename.
+	(dev_state:save_restore): New function.  Attempt to save the entire
+	screen buffer rather than just the visible part.  Clear the buffer when
+	saving, like Linux.
+	(fhandler_console::char_command): Use con.save_restore() for
+	Save/restore screen sequence.
+
 2014-03-09  Christopher Faylor  <me.cygwin2014@cgf.cx>
 
 	* sigproc.cc (_cygtls::remove_wq): Reset thread_ev inside of lock.  Set

winsup/cygwin/fhandler.h

@@ -1287,23 +1287,22 @@ class dev_console
   /* saved cursor coordinates */
   int savex, savey;
 
-  /* saved screen */
-  COORD savebufsiz;
-  PCHAR_INFO savebuf;
 
   struct
     {
-      short Top, Bottom;
+      short Top;
+      short Bottom;
     } scroll_region;
 
-  SHORT winTop;
+  CONSOLE_SCREEN_BUFFER_INFOEX b;
-  SHORT winBottom;
   COORD dwWinSize;
-  COORD dwBufferSize;
-  COORD dwCursorPosition;
-  WORD wAttributes;
   COORD dwEnd;
 
+  /* saved screen */
+  COORD save_bufsize;
+  PCHAR_INFO save_buf;
+  COORD save_cursor;
+
   COORD dwLastCursorPosition;
   COORD dwMousePosition;	/* scroll-adjusted coord of mouse event */
   COORD dwLastMousePosition;	/* scroll-adjusted coord of previous mouse event */
@@ -1330,6 +1329,7 @@ class dev_console
   bool __reg3 scroll_window (HANDLE, int, int, int, int);
   void __reg3 scroll_buffer (HANDLE, int, int, int, int, int, int);
   void __reg3 clear_screen (HANDLE, int, int, int, int);
+  void __reg3 save_restore (HANDLE, char);
 
   friend class fhandler_console;
 };
@@ -1341,7 +1341,7 @@ public:
   struct console_state
   {
     tty_min tty_min_state;
-    dev_console dev_state;
+    dev_console con;
   };
 private:
   static const unsigned MAX_WRITE_CHARS;
@@ -1413,7 +1413,7 @@ private:
   int ioctl (unsigned int cmd, void *);
   int init (HANDLE, DWORD, mode_t);
   bool mouse_aware (MOUSE_EVENT_RECORD& mouse_event);
-  bool focus_aware () {return shared_console_info->dev_state.use_focus;}
+  bool focus_aware () {return shared_console_info->con.use_focus;}
 
   select_record *select_read (select_stuff *);
   select_record *select_write (select_stuff *);