how can I list all the processes in the system

X

xxs

I have writen some codes as follow：

#include <windows.h>
#include <tlhelp32.h>
#include <stdio.h>

// Forward declarations:

BOOL GetProcessList( );
BOOL ListProcessModules( DWORD dwPID );
BOOL KillProcessFromName(LPCTSTR name);
void printError( TCHAR* msg );

//
void main( )
{
GetProcessList( );
}

//获å–进程信æ¯
BOOL GetProcessList( )
{
HANDLE hProcessSnap;
HANDLE hProcess;
PROCESSENTRY32 pe32;
DWORD dwPriorityClass;

// Take a snapshot of all processes in the system.
hProcessSnap = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
if( hProcessSnap == INVALID_HANDLE_VALUE )
{
printError( "CreateToolhelp32Snapshot (of processes)" );
return( FALSE );
}

// Set the size of the structure before using it.
pe32.dwSize = sizeof( PROCESSENTRY32 );

// Retrieve information about the first process,
// and exit if unsuccessful
if( !Process32First( hProcessSnap, &pe32 ) )
{
printError( "Process32First" ); // Show cause of failure
CloseHandle( hProcessSnap ); // Must clean up the snapshot
object!
return( FALSE );
}

// Now walk the snapshot of processes, and
// display information about each process in turn
do
{
printf( "\n
\n=====================================================" );
printf( "\nPROCESS NAME: %s", pe32.szExeFile );

printf( "\n-----------------------------------------------------" );

// Retrieve the priority class.
dwPriorityClass = 0;
hProcess = OpenProcess( PROCESS_ALL_ACCESS, FALSE,
pe32.th32ProcessID );
if( hProcess == NULL )
printError( "OpenProcess" );
else
{
dwPriorityClass = GetPriorityClass( hProcess );
if( !dwPriorityClass )
printError( "GetPriorityClass" );
CloseHandle( hProcess );
}
//进程的相关信æ¯
printf( "\n process ID = 0x%08X", pe32.th32ProcessID );//idå·
// List the modules and threads associated with this process
ListProcessModules( pe32.th32ProcessID );
// ListProcessThreads( pe32.th32ProcessID );

} while( Process32Next( hProcessSnap, &pe32 ) );

CloseHandle( hProcessSnap );
return( TRUE );
}
//模å—ä¿¡æ¯
BOOL ListProcessModules( DWORD dwPID )
{
HANDLE hModuleSnap = INVALID_HANDLE_VALUE;
MODULEENTRY32 me32;
hModuleSnap = CreateToolhelp32Snapshot( TH32CS_SNAPMODULE, dwPID );
if(hModuleSnap == INVALID_HANDLE_VALUE)
{
printError( "CreateToolhelp32Snapshot (of Modules)" );
return( FALSE );
}

// Set the size of the structure before using it.
me32.dwSize = sizeof( MODULEENTRY32 );

// Retrieve information about the first module,
// and exit if unsuccessful
if( !Module32First( hModuleSnap, &me32 ) )
{
printError( "Module32First" ); // Show cause of failure
CloseHandle( hModuleSnap ); // Must clean up the snapshot
object!
return( FALSE );
}

printf( "\n executable = %s\n", me32.szExePath );
CloseHandle( hModuleSnap );
return( TRUE );

}

//kill the special process
BOOL KillProcessFromName(LPCTSTR name)//name为你è¦ç»ˆæ­¢çš„进程的å称，Win9X则需包括路径
{
PROCESSENTRY32 pe;//定义一个PROCESSENTRY32结类型的å˜é‡
HANDLE hShot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);// 创建快照å¥æŸ„
HANDLE hProcess = INVALID_HANDLE_VALUE;
pe.dwSize=sizeof(PROCESSENTRY32);//一定è¦å…ˆä¸ºdwSize赋值
if (Process32First(hShot,&pe))
{
do{
if (strcmp(pe.szExeFile,name)==0) //判断此进程是å¦ä¸ºä½ è¦ç»ˆæ­¢çš„进程
hProcess=OpenProcess(PROCESS_ALL_ACCESS,FALSE,pe.th32ProcessID);
//如果是就利用其ID获得å¥æŸ„
if( hProcess == INVALID_HANDLE_VALUE )
{
printError( "OpenProcess (of processes)" );
return( FALSE );
}
TerminateProcess(hProcess,0);//终止该进程
}while(Process32Next(hShot,&pe));
}
CloseHandle(hShot);//最åŽåˆ«å¿˜è®°Close
return( TRUE );
}
//错误处ç†
void printError( TCHAR* msg )
{
DWORD eNum;
TCHAR sysMsg[256];
TCHAR* p;

eNum = GetLastError( );
FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, eNum,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default
language
sysMsg, 256, NULL );

// Trim the end of the line and terminate it with a null
p = sysMsg;
while( ( *p > 31 ) || ( *p == 9 ) )
++p;
do { *p-- = 0; } while( ( p >= sysMsg ) &&
( ( *p == '.' ) || ( *p < 33 ) ) );

// Display the message
printf( "\n WARNING: %s failed with error %d (%s)", msg, eNum,
sysMsg );
}

I can get some processes' location,but I can't get all,such as
svchost.
How can I get all processes' location?

Thank you!
 
G

Guest

I have writen some codes as follow：

#include <windows.h>
#include <tlhelp32.h>
#include <stdio.h>
Click to expand...

Sorry, this is off-topic here, try one of the microsoft.public.*
groups, such as microsoft.public.win32.programmer.
 
F

Fei Liu

xxs said:
I have writen some codes as follow：

#include <windows.h>
#include <tlhelp32.h>
#include <stdio.h>

// Forward declarations:

BOOL GetProcessList( );
BOOL ListProcessModules( DWORD dwPID );
BOOL KillProcessFromName(LPCTSTR name);
void printError( TCHAR* msg );

//
void main( )
{
GetProcessList( );
}

//获å–进程信æ¯
BOOL GetProcessList( )
{
HANDLE hProcessSnap;
HANDLE hProcess;
PROCESSENTRY32 pe32;
DWORD dwPriorityClass;

// Take a snapshot of all processes in the system.
hProcessSnap = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
if( hProcessSnap == INVALID_HANDLE_VALUE )
{
printError( "CreateToolhelp32Snapshot (of processes)" );
return( FALSE );
}

// Set the size of the structure before using it.
pe32.dwSize = sizeof( PROCESSENTRY32 );

// Retrieve information about the first process,
// and exit if unsuccessful
if( !Process32First( hProcessSnap, &pe32 ) )
{
printError( "Process32First" ); // Show cause of failure
CloseHandle( hProcessSnap ); // Must clean up the snapshot
object!
return( FALSE );
}

// Now walk the snapshot of processes, and
// display information about each process in turn
do
{
printf( "\n
\n=====================================================" );
printf( "\nPROCESS NAME: %s", pe32.szExeFile );

printf( "\n-----------------------------------------------------" );

// Retrieve the priority class.
dwPriorityClass = 0;
hProcess = OpenProcess( PROCESS_ALL_ACCESS, FALSE,
pe32.th32ProcessID );
if( hProcess == NULL )
printError( "OpenProcess" );
else
{
dwPriorityClass = GetPriorityClass( hProcess );
if( !dwPriorityClass )
printError( "GetPriorityClass" );
CloseHandle( hProcess );
}
//进程的相关信æ¯
printf( "\n process ID = 0x%08X", pe32.th32ProcessID );//idå·
// List the modules and threads associated with this process
ListProcessModules( pe32.th32ProcessID );
// ListProcessThreads( pe32.th32ProcessID );

} while( Process32Next( hProcessSnap, &pe32 ) );

CloseHandle( hProcessSnap );
return( TRUE );
}
//模å—ä¿¡æ¯
BOOL ListProcessModules( DWORD dwPID )
{
HANDLE hModuleSnap = INVALID_HANDLE_VALUE;
MODULEENTRY32 me32;
hModuleSnap = CreateToolhelp32Snapshot( TH32CS_SNAPMODULE, dwPID );
if(hModuleSnap == INVALID_HANDLE_VALUE)
{
printError( "CreateToolhelp32Snapshot (of Modules)" );
return( FALSE );
}

// Set the size of the structure before using it.
me32.dwSize = sizeof( MODULEENTRY32 );

// Retrieve information about the first module,
// and exit if unsuccessful
if( !Module32First( hModuleSnap, &me32 ) )
{
printError( "Module32First" ); // Show cause of failure
CloseHandle( hModuleSnap ); // Must clean up the snapshot
object!
return( FALSE );
}

printf( "\n executable = %s\n", me32.szExePath );
CloseHandle( hModuleSnap );
return( TRUE );

}

//kill the special process
BOOL KillProcessFromName(LPCTSTR name)//name为你è¦ç»ˆæ­¢çš„进程的å称，Win9X则需包括路径
{
PROCESSENTRY32 pe;//定义一个PROCESSENTRY32结类型的å˜é‡
HANDLE hShot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);// 创建快照å¥æŸ„
HANDLE hProcess = INVALID_HANDLE_VALUE;
pe.dwSize=sizeof(PROCESSENTRY32);//一定è¦å…ˆä¸ºdwSize赋值
if (Process32First(hShot,&pe))
{
do{
if (strcmp(pe.szExeFile,name)==0) //判断此进程是å¦ä¸ºä½ è¦ç»ˆæ­¢çš„进程
hProcess=OpenProcess(PROCESS_ALL_ACCESS,FALSE,pe.th32ProcessID);
//如果是就利用其ID获得å¥æŸ„
if( hProcess == INVALID_HANDLE_VALUE )
{
printError( "OpenProcess (of processes)" );
return( FALSE );
}
TerminateProcess(hProcess,0);//终止该进程
}while(Process32Next(hShot,&pe));
}
CloseHandle(hShot);//最åŽåˆ«å¿˜è®°Close
return( TRUE );
}
//错误处ç†
void printError( TCHAR* msg )
{
DWORD eNum;
TCHAR sysMsg[256];
TCHAR* p;

eNum = GetLastError( );
FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, eNum,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default
language
sysMsg, 256, NULL );

// Trim the end of the line and terminate it with a null
p = sysMsg;
while( ( *p > 31 ) || ( *p == 9 ) )
++p;
do { *p-- = 0; } while( ( p >= sysMsg ) &&
( ( *p == '.' ) || ( *p < 33 ) ) );

// Display the message
printf( "\n WARNING: %s failed with error %d (%s)", msg, eNum,
sysMsg );
}

I can get some processes' location,but I can't get all,such as
svchost.
How can I get all processes' location?

Thank you!
Click to expand...

Off topic, but most likely you don't have enough privilege to peek into
system processes such as svchost.
 

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