I'll follow up to my own message.
The following patch to OpenDX fixes the problem with LessTif.
I believe that this is an OpenDX bug, not a LessTif bug.
You'll want to remove the fprintf statement of course.
Danny
dell: {10} cvs diff TransferAccelerator.c
Index: TransferAccelerator.c
===================================================================
RCS file: /src/master/dx/src/uipp/dxuilib/TransferAccelerator.c,v
retrieving revision 1.5
diff -c -r1.5 TransferAccelerator.c
*** TransferAccelerator.c 2002/03/22 23:26:24 1.5
--- TransferAccelerator.c 2002/04/15 19:16:50
***************
*** 7,13 ****
/***********************************************************************/
#include "dxconfig.h"
!
#include <stdlib.h>
#include <X11/Xatom.h>
#include <X11/Intrinsic.h>
--- 7,13 ----
/***********************************************************************/
#include "dxconfig.h"
! #include <stdio.h>
#include <stdlib.h>
#include <X11/Xatom.h>
#include <X11/Intrinsic.h>
***************
*** 188,197 ****
#if defined(HAVE_XMMAPKEYEVENTS)
int count ;
! int *type_list;
! KeySym *keysym_list ;
! Modifiers *modifiers_list ;
!
count = _XmMapKeyEvents(accelerator, &type_list, &keysym_list,
&modifiers_list) ;
if (count > 0) {
--- 188,198 ----
#if defined(HAVE_XMMAPKEYEVENTS)
int count ;
! int *type_list = (int *)XtCalloc(10, sizeof(int));
! KeySym *keysym_list = (KeySym *)XtCalloc(10, sizeof(KeySym));
! Modifiers *modifiers_list = (Modifiers *)XtCalloc(10,
sizeof(Modifiers));
!
! fprintf(stderr, "TransferAccelerator(%s)\n", accelerator);
count = _XmMapKeyEvents(accelerator, &type_list, &keysym_list,
&modifiers_list) ;
if (count > 0) {
Danny Backx wrote:
>
> Rob Lahaye pointed me to these addresses.
>
> The CVS version of LessTif seems to have problems with the CVS
> version of OpenDX, in our new implementation of _XmMapKeyEvents().
> I wrote to you about implementing that in LessTif earlier.
>
> Please read the messages attached, I am not completely sure
> whether the way in which OpenDX calls _XmMapKeyEvents() is correct.
> I've indicated a fix as well.
>
> After that fix, there is still a problem, Rob indicates that this
> may be LessTif related. The argument is that OpenDX-CVS works with
> LessTif 0.93.18 but not with LessTif-CVS. (I'm inclined to
> believe that.)
>
> Do you have more insights ?
>
> Also is my idea about the _XmMapKeyEvents() call right - that your
> call is mistaken ?
>
> Thanks,
>
> Danny
> --
> Danny Backx ([EMAIL PROTECTED] [EMAIL PROTECTED])
> Home page : http://users.skynet.be/danny.backx
> Projects: LessTif (http://www.lesstif.org)
> Oleo (http://www.gnu.org/software/oleo/oleo.html)
>
> --------------------------------------------------------------------------------
>
> Subject: Re: [Lesstif] Re: lesstif-CVS: Double click on VPE-tool (OpenDX)
> destroys VPE.
> Date: Fri, 12 Apr 2002 12:00:05 +0200
> From: Danny Backx <[EMAIL PROTECTED]>
> Organization: Familie Backx
> To: Alexander Mai <[EMAIL PROTECTED]>,
> "R. Lahaye" <[EMAIL PROTECTED]>
> CC: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
> References: <[EMAIL PROTECTED]>
>
> I have the CVS version of OpenDX working now, and I can reproduce.
>
> However, is the OpenDX code correct ?
>
> It is passing this to _XmMapKeyEvents :
> KeySym keysym = 0;
> KeySym *keysym_list;
> count = _XmMapKeyEvents(accelerator, &type_list, &keysym_list, ...
>
> Shouldn't keysym_list either point to allocated memory or be initialised to 0 ?
>
> I'd expect something like this :
> KeySym *keysym_list = XtCalloc(10, sizeof(KeySym));
> or
> KeySym *keysym_list = NULL;
>
> (In the latter case I could detect inside LessTif and allocate memory
> for this, but I'm not sure whether I should do this as I have no description
> of what _XmMapKeyEvents() should do in this case. Currently I'm not
> detecting it so the second suggestion would crash with LessTif.)
>
> I made the first of my suggested changes above, and now I get a crash
> further along. I stopped gdb around the previously guilty lines, and
> printed some stuff :
>
> (gdb) break 2040
> Breakpoint 2 at 0x40170328: file MapEvent.c, line 2040.
> (gdb) c
> Continuing.
>
> Breakpoint 2, _XmMapKeyEvents (str=0x842ce10 "Ctrl<Key>S", eventType=0xbffff114,
> keysym=0xbffff110, modifiers=0xbffff10c) at MapEvent.c:2040
> 2040 (*keysym)[i] = e->event.eventCode;
> (gdb) p i
> $1 = 0
> (gdb) s
> 2041 (*modifiers)[i] = e->event.modifiers;
> (gdb) s
> 2042 i++;
> (gdb) p *keysym
> $2 = (KeySym *) 0x8473940
> (gdb) p *keysym[0]
> $3 = 83
> (gdb) c
> Continuing.
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x080b2c86 in EditorWindow::doSelectedNodesDefaultAction ()
> (gdb) q
>
> This may still be a LessTif problem, but I cannot tell without
> further investigation. Rob, do you have insights ?
>
> Danny
--
Danny Backx ([EMAIL PROTECTED] [EMAIL PROTECTED])
Home page : http://users.skynet.be/danny.backx
Projects: LessTif (http://www.lesstif.org)
Oleo (http://www.gnu.org/software/oleo/oleo.html)
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