patch 8.1.0743: giving error messages is not flexible commit https://github.com/vim/vim/commit/f9e3e09fdc93be9f0d47afbc6c7df1188c2a5a0d Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 13 23:38:42 2019 +0100 patch 8.1.0743: giving error messages is not flexible Problem: Giving error messages is not flexible. Solution: Add semsg(). Change argument from "char_u *" to "char *", also for msg() and get rid of most MSG macros. (Ozaki Kiichi, closes #3302) Also make emsg() accept a "char *" argument. Get rid of an enormous number of type casts.

/* gui_beval.c */
BalloonEval *gui_mch_create_beval_area(void *target, char_u *mesg, void (*mesgCB)(BalloonEval *, int), void *clientData);
void gui_mch_destroy_beval_area(BalloonEval *beval);
void gui_mch_enable_beval_area(BalloonEval *beval);
void gui_mch_disable_beval_area(BalloonEval *beval);
BalloonEval *gui_mch_currently_showing_beval(void);
void gui_mch_post_balloon(BalloonEval *beval, char_u *mesg);
void gui_mch_unpost_balloon(BalloonEval *beval);
/* vim: set ft=c : */