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	st-visualbell-20180101-1f24bde.diff (1508B)
	---
	1 diff --git a/st.c b/st.c
	2 index 7c7ddff..2dc10c2 100644
	3 --- a/st.c
	4 +++ b/st.c
	5 @@ -218,6 +218,7 @@ char *opt_line = NULL;
	6 char *opt_name = NULL;
	7 char *opt_title = NULL;
	8 int oldbutton = 3; /* button event on startup: 3 = release */
	9 +int bellon = 0;
	10
	11 static CSIEscape csiescseq;
	12 static STREscape strescseq;
	13 @@ -2187,8 +2188,7 @@ tcontrolcode(uchar ascii)
	14 } else {
	15 if (!(win.state & WIN_FOCUSED))
	16 xseturgency(1);
	17 - if (bellvolume)
	18 - xbell(bellvolume);
	19 + xbell(bellvolume);
	20 }
	21 break;
	22 case '\033': /* ESC */
	23 diff --git a/st.h b/st.h
	24 index 44d4938..24a6eb6 100644
	25 --- a/st.h
	26 +++ b/st.h
	27 @@ -231,6 +231,7 @@ extern char *opt_line;
	28 extern char *opt_name;
	29 extern char *opt_title;
	30 extern int oldbutton;
	31 +extern int bellon;
	32
	33 extern char *usedfont;
	34 extern double usedfontsize;
	35 diff --git a/x.c b/x.c
	36 index c484dfc..0b59d0e 100644
	37 --- a/x.c
	38 +++ b/x.c
	39 @@ -1484,7 +1484,17 @@ xseturgency(int add)
	40 void
	41 xbell(int vol)
	42 {
	43 - XkbBell(xw.dpy, xw.win, vol, (Atom)NULL);
	44 + if (vol)
	45 + XkbBell(xw.dpy, xw.win, vol, (Atom)NULL);
	46 +
	47 + /* visual bell*/
	48 + if (!bellon) {
	49 + bellon = 1;
	50 + MODBIT(term.mode, !IS_SET(MODE_REVERSE), MODE_REVERSE);
	51 + redraw();
	52 + XFlush(xw.dpy);
	53 + MODBIT(term.mode, !IS_SET(MODE_REVERSE), MODE_REVERSE);
	54 + }
	55 }
	56
	57 unsigned long
	58 @@ -1676,7 +1686,12 @@ run(void)
	59 (handler[ev.type])(&ev);
	60 }
	61
	62 - draw();
	63 + if (bellon) {
	64 + bellon = 0;
	65 + redraw();
	66 + }
	67 + else draw();
	68 +
	69 XFlush(xw.dpy);
	70
	71 if (xev && !FD_ISSET(xfd, &rfd))
	72 --
	73 2.15.1
	74