spawn-constants.md

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spawn Constants | Microsoft Docs		11/04/2016			cpp-standard-libraries		article	_P_NOWAIT _P_OVERLAY _P_WAIT _P_DETACH _P_NOWAITO	C++	_P_OVERLAY constant P_DETACH constant P_OVERLAY constant P_NOWAIT constant _P_DETACH constant _P_NOWAIT constant _P_NOWAITO constant P_NOWAITO constant spawn constants P_WAIT constant _P_WAIT constant	e0533e88-d362-46fc-b53c-5f193226d879	8	corob-msft	corob	ghogen

spawn Constants

Syntax

#include <process.h>  

Remarks

The mode argument determines the action taken by the calling process before and during a spawn operation. The following values for mode are possible:

Constant	Meaning
_P_OVERLAY	Overlays calling process with new process, destroying calling process (same effect as _exec calls).
_P_WAIT	Suspends calling thread until execution of new process is complete (synchronous _spawn).
_P_NOWAIT, _P_NOWAITO	Continues to execute calling process concurrently with new process (asynchronous _spawn).
_P_DETACH	Continues to execute calling process; new process is run in background with no access to console or keyboard. Calls to _cwait against new process will fail. This is an asynchronous _spawn.

See Also

_spawn, _wspawn Functions
Global Constants