1 files changed, 15 insertions, 0 deletions

diff --git a/src/frame.h b/src/frame.h
index 35cbc44becc..87c4fcb0555 100644
--- a/src/frame.h
+++ b/src/frame.h
@@ -933,6 +933,21 @@ typedef struct frame *FRAME_PTR;
         && (frame_var = XCAR (list_var), 1));   \
        list_var = XCDR (list_var))
 
+/* Reflect mouse movement when a complete frame update is performed.  */
+
+#define FRAME_MOUSE_UPDATE(frame)                               \
+  do {                                                          \
+    Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (frame);               \
+    if (frame == hlinfo->mouse_face_mouse_frame)                \
+      {                                                         \
+        block_input ();                                         \
+        if (hlinfo->mouse_face_mouse_frame)                     \
+          note_mouse_highlight (hlinfo->mouse_face_mouse_frame, \
+                                hlinfo->mouse_face_mouse_x,     \
+                                hlinfo->mouse_face_mouse_y);    \
+        unblock_input ();                                       \
+      }                                                         \
+  } while (0)
 
 extern Lisp_Object Qframep, Qframe_live_p;
 extern Lisp_Object Qtty, Qtty_type;