Fix "emacs -nw" on MS-Windows

* src/w32term.c (w32_flip_buffers_if_dirty): Do nothing if F is
not a GUI frame.  This avoids rare crashes in "emacs -nw".
* src/w32console.c (initialize_w32_display): Set the
ENABLE_EXTENDED_FLAGS bit in 'prev_console_mode'.

(cherry picked from commit e1970c99f097715fc5bb3b88154799bfe13de90f)

1 files changed, 4 insertions, 0 deletions

diff --git a/src/w32console.c b/src/w32console.c
index c2b87928cc1..0936b5f37e6 100644
--- a/src/w32console.c
+++ b/src/w32console.c
@@ -705,6 +705,10 @@ initialize_w32_display (struct terminal *term, int *width, int *height)
   /* Remember original console settings.  */
   keyboard_handle = GetStdHandle (STD_INPUT_HANDLE);
   GetConsoleMode (keyboard_handle, &prev_console_mode);
+  /* Make sure ENABLE_EXTENDED_FLAGS is set in console settings,
+     otherwise restoring the original setting of ENABLE_MOUSE_INPUT
+     will not work.  */
+  prev_console_mode |= ENABLE_EXTENDED_FLAGS;
 
   prev_screen = GetStdHandle (STD_OUTPUT_HANDLE);