Get information about the specified process

ProcessSerialNumber *PSN ; a pointer to a valid process serial number

ProcessInfoRecPtr info ; a pointer to a ProcessInfoRec

returns Error Code; 0=no error

You use the GetProcessInformation to get information about the specified

PSN is a valid process serial number returned from

GetCurrentProcess , or a high level event. You can use the

constant kCurrentProcess to get information about the current

info is a pointer to a ProcessInfoRec which includes the application's

name as it appears in the Application menu, the type and signature of

the application, the address of the application partition, the number

of bytes in the application partition, the number of free bytes in the

application heap, the application that launched the application, the

time at which the application was launched, and the location of the

paramErr (-50) Process serial number is invalid

Notes: GetProcessInformation function returns information about the

specified process in a process information record.

The GetProcessInformation function also returns information about

the application's 'SIZE' resource and indicates whether the process is an

You need to specify values for the processInfoLength , processName , and

processAppSpec fields of the process information record. Specify the

length of the process information record in the processInfoLength field. If

you do not want information returned in the processName and

processAppSpec fields, specify NIL for these fields. Otherwise, allocate at

least 32 bytes of storage for the string pointed to by the processName field

and specify a pointer to an FSSpec record in the processAppSpec field.

The process serial number you specify in the PSN parameter should be a

valid process serial number returned from LaunchApplication ,

high-level event. You can use the constant kCurrentProcess to get

Note: Do not call GetProcessInformation from a routine that executes