[GRASS-dev] debugging nviz with TclTk 8.5 aqua

Glynn Clements glynn at gclements.plus.com
Tue Jul 22 21:49:21 EDT 2008


Glynn Clements wrote:

> > This actually produced some results.
> 
> > (gdb) print ((struct TkWindowPrivate *) (window))
> > $1 = (struct TkWindowPrivate *) 0x1d7c648
> > (gdb) print ((struct TkWindowPrivate *) (window))->toplevel
> > $2 = (struct TkWindowPrivate *) 0x28
> 
> Ouch.
> 
> Do you have more than one version of Tcl/Tk on your system? One
> possibility is that the tkMacOSXInt.h header which Togl is using
> doesn't match the library.
> 
> Another possibility is that the structure packing could be affected by
> compiler switches, so if Togl isn't compiled with the same switches as
> the Tk library, it won't be accessing the fields correctly.
> 
> Can you try:
> 
> 	print *((struct TkWindowPrivate *) (window))

Oh; while you're at it, can you post your tkMacOSXInt.h header?

-- 
Glynn Clements <glynn at gclements.plus.com>


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