Re: Ctrl-Z fails to suspend Windows programs

[Jani tiainen <redetin at luukku dot com>]

Christopher Faylor wrote:
> On Tue, Jun 15, 2004 at 03:37:05PM +0300, Jani tiainen wrote:
>
> > Christopher Faylor wrote:
> >
> > > On Tue, Jun 15, 2004 at 09:58:16AM +0100, John Cooper wrote:
> > >
> > > > Is it a known limitation that "native" Windows programs cannot be
> > > > suspended?
> > >
> > > Yes.  Window programs do not understand cygwin signals.
> >
> > Thats true for cygwin part.  Native programs still can be
> > suspended/resumed but not by cygwin (or shell that is running and
> > waiting finishing of active process).
>
>
> It is true for any part that Windows programs do not understand cygwin
> signals.
>
> There is no way to reliably suspend a Windows programs.

Yes there is ( piece of pseudo code):

For Each Thread THREAD_Y in Process PROCESS_X
	Call_Win32API SuspendThread(THREAD_Y.Handle)
Next

NOTE: In Win2k and later you need THREAD_SUSPEND_RESUME rights for 
particular thread.

--

Jani Tiainen

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