Variable: input-method-previous-message
input-method-previous-message is a variable defined in keyboard.c.
Value
nil
Documentation
When input-method-function is called, hold the previous echo area message.
This variable exists because read-event clears the echo area
before running the input method. It is nil if there was no message.
Source Code
// Defined in /usr/src/emacs/src/keyboard.c
DEFVAR_LISP ("input-method-previous-message",
Vinput_method_previous_message,
doc: /* When `input-method-function' is called, hold the previous echo area message.
This variable exists because `read-event' clears the echo area
before running the input method. It is nil if there was no message. */);