From 34ee9f25c36bb8f23fce0f3e8ef4348ec71f8582 Mon Sep 17 00:00:00 2001 From: das Date: Thu, 12 Jun 2008 17:08:59 +0000 Subject: * generic/tkPointer.c (Tk_UpdatePointer): fix failure to restore a global grab capture and to release the restrict window capture when releasing a button grab. Fixes segfault due to dangling reference to restrict window inside TkpSetCapture() implementation. [Bug 1991932] --- ChangeLog | 5 +++++ generic/tkPointer.c | 10 ++++------ 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/ChangeLog b/ChangeLog index c1733f8..309884e 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,10 @@ 2008-06-12 Daniel Steffen + * generic/tkPointer.c (Tk_UpdatePointer): fix failure to restore a + global grab capture and to release the restrict window capture when + releasing a button grab. Fixes segfault due to dangling reference to + restrict window inside TkpSetCapture() implementation. [Bug 1991932] + * generic/ttk/ttkTreeview.c: fix warning. * unix/tcl.m4 (SunOS-5.11): fix 64bit amd64 support with gcc & Sun cc. diff --git a/generic/tkPointer.c b/generic/tkPointer.c index 3b38cbe..99b61b7 100644 --- a/generic/tkPointer.c +++ b/generic/tkPointer.c @@ -11,7 +11,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkPointer.c,v 1.10 2005/11/15 15:18:22 dkf Exp $ + * RCS: @(#) $Id: tkPointer.c,v 1.11 2008/06/12 17:08:59 das Exp $ */ #include "tkInt.h" @@ -309,14 +309,12 @@ Tk_UpdatePointer( /* * ButtonRelease - Release the mouse capture and clear the - * restrict window when the last button is released and we - * aren't in a global grab. + * restrict window when the last button is released. If we + * are in a global grab, restore the grab window capture. */ if ((tsdPtr->lastState & ALL_BUTTONS) == mask) { - if (!tsdPtr->grabWinPtr) { - TkpSetCapture(NULL); - } + TkpSetCapture(tsdPtr->grabWinPtr); } /* -- cgit v0.12