reached by the mouse. */
extern Lisp_Object last_nonmenu_event;
-/* Command character to be re-read, or -1 */
-extern Lisp_Object unread_command_char;
+/* Command event to be re-read, or Qnil. */
+extern Lisp_Object unread_command_event;
+
+/* If not Qnil, this is a switch-frame event which we decided to put
+ off until the end of a key sequence. This should be read as the
+ next command input, after any unread_command_event.
+
+ read_key_sequence uses this to delay switch-frame events until the
+ end of the key sequence; Fread_char uses it to put off switch-frame
+ events until a non-ASCII event is acceptable as input. */
+extern Lisp_Object unread_switch_frame;
/* Previous command symbol found here for comparison */
extern Lisp_Object last_command;