getpid.md

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_getpid | Microsoft Docs		11/04/2016			cpp-standard-libraries		article	_getpid	msvcrt.dll msvcr80.dll msvcr90.dll msvcr100.dll msvcr100_clr0400.dll msvcr110.dll msvcr110_clr0400.dll msvcr120.dll msvcr120_clr0400.dll ucrtbase.dll api-ms-win-crt-runtime-l1-1-0.dll	DLLExport	_getpid	C++	getpid function _getpid function process identification numbers	d3e13bae-9a0c-4f33-86d3-ec9df9519285	20	corob-msft	corob	ghogen

_getpid

Gets the process identification.

Important

This API cannot be used in applications that execute in the Windows Runtime. For more information, see CRT functions not supported with /ZW.

Syntax

int _getpid( void );  

Return Value

Returns the process ID obtained from the system. There is no error return.

Remarks

The _getpid function obtains the process ID from the system. The process ID uniquely identifies the calling process.

Requirements

Routine	Required header
_getpid	<process.h>

For more compatibility information, see Compatibility.

Example

// crt_getpid.c  
// This program uses _getpid to obtain  
// the process ID and then prints the ID.  
  
#include <stdio.h>  
#include <process.h>  
  
int main( void )  
{  
   // If run from command line, shows different ID for   
   // command line than for operating system shell.  
  
   printf( "Process id: %d\n", _getpid() );  
}  

Process id: 3584  

See Also

Process and Environment Control
_mktemp, _wmktemp