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Gets the process identification.


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


int _getpid( void );  

Return Value

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


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


Routine Required header
_getpid <process.h>

For more compatibility information, see Compatibility.


// 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  

.NET Framework Equivalent


See Also

Process and Environment Control
_mktemp, _wmktemp