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Merge patch from Tom Dickey for a segfault that happens when using the

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mouse wheel over the scrollbar. ok guenther@ deraadt@
This commit is contained in:
matthieu 2013-02-27 22:11:56 +00:00
parent 291e292e66
commit fe859a9f34
1 changed files with 7 additions and 5 deletions
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12
app/xterm/scrollbar.c
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@ -1,7 +1,7 @@
/* $XTermId: scrollbar.c,v 1.193 2012/09/28 21:04:50 tom Exp $ */
/* $XTermId: scrollbar.c,v 1.196 2013/02/26 23:36:05 tom Exp $ */
/*
* Copyright 2000-2011,2012 by Thomas E. Dickey
* Copyright 2000-2012,2013 by Thomas E. Dickey
*
* All Rights Reserved
*
@ -697,10 +697,12 @@ AmountToScroll(Widget w, String * params, Cardinal nparams)
static void
AlternateScroll(Widget w, long amount)
{
XtermWidget xw = (XtermWidget) w;
TScreen *screen = TScreenOf(xw);
XtermWidget xw;
TScreen *screen;
if (screen->alternateScroll && screen->whichBuf) {
if ((xw = getXtermWidget(w)) != 0 &&
(screen = TScreenOf(xw)) != 0 &&
screen->alternateScroll && screen->whichBuf) {
ANSI reply;
amount /= FontHeight(screen);