Ctrl-Z fails to suspend Windows programs

[Jani tiainen]

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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