各位大虾们请帮小弟一把::枚举系统中的进程

[888atao]

看过这方面的代码
但本人很菜，刚刚入门看不懂呀
不过看起来好像是要用到注册表
所以请各位大侠们帮一把
给我讲一下它的原理就可以了
如果有短一点的代码也可以（长的真晕啊）

感激不尽

[arvid_gs]

#include <windows.h>
#include <stdio.h>
#include "psapi.h"

void PrintProcessNameAndID( DWORD processID )
{
char szProcessName[MAX_PATH] = "unknown";

// Get a handle to the process.

HANDLE hProcess = OpenProcess( PROCESS_QUERY_INFORMATION |
PROCESS_VM_READ,
FALSE, processID );

// Get the process name.

if ( hProcess )
{
HMODULE hMod;
DWORD cbNeeded;

if ( EnumProcessModules( hProcess, &hMod, sizeof(hMod),
&cbNeeded) )
{
GetModuleBaseName( hProcess, hMod, szProcessName,
sizeof(szProcessName) );
}
}

// Print the process name and identifier.

printf( "%s (Process ID: %u)\n", szProcessName, processID );

CloseHandle( hProcess );
}

void main( )
{
// Get the list of process identifiers.

DWORD aProcesses[1024], cbNeeded, cProcesses;
unsigned int i;

if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )
return;

// Calculate how many process identifiers were returned.

cProcesses = cbNeeded / sizeof(DWORD);

// Print the name and process identifier for each process.

for ( i = 0; i < cProcesses; i++ )
PrintProcessNameAndID( aProcesses[i] );
}