Enumerate all processes in the current system with snapshots

How to enumerate all the processes in the current system with snapshots, more friends asked this question recently, so simply posted up to forget. Oh. :D

Add a ListView to the form, set its viewstyle to VSReport, add a three column to ListView, and add a button.

#include <tlhelp32.h>
#include "stdio.h"
void __fastcall Tmainform::button1click (tobject *sender)
{
Find each process and display it.
HANDLE snapshot;
PROCESSENTRY32 ProcessInfo;
processinfo.dwsize = sizeof (ProcessInfo);
snapshot = CreateToolhelp32Snapshot (th32cs_snapprocess, 0);
if (snapshot = NULL)
return;
BOOL status = Process32First (snapshot, &processinfo);
while (status)
{
Tlistitem *li = Listview1->items->add ();
String buffer;
int length;
Buffer. SetLength (512);
Length = sprintf (Buffer.c_str (), "%08x", Processinfo.th32processid);
Buffer. SetLength (length);
li->caption = buffer;
Buffer. SetLength (512);
Length = sprintf (Buffer.c_str (), "%08x", Processinfo.th32parentprocessid);
Buffer. SetLength (length);
Li->subitems->add (buffer);
Li->subitems->add (Processinfo.szexefile);
Status = Process32Next (snapshot, &processinfo);
}
}