Find handle Process when know Name

[maiami_2911]

i want Find Handle of process ,ex alg.exe in windowsxp???

[carl666]

Why don't you search in MSDN or Google Groups ?!
it needs 2 seconds to find OpenProcess on the pid got from name...

[maiami_2911]

OK,thank you ,i were do word

#define UNICODE
#ifdef UNICODE
#define _UNICODE
#endif

#define DEV_CPP
#include <windows.h>
#include <stdio.h>
#include <tchar.h>

#ifdef VISUAL_CPP
#define NOT_USE_DEV_CPP
#include <psapi.h>//-->For using EnumProcesses,...Source:MSDN
#endif

#ifdef NOT_USE_DEV_CPP
#undef DEV_CPP
#endif

#ifdef DEV_CPP
#define EnumProcesses pfnEnumProcesses
#define EnumProcessModules pfnEnumProcessModules
#define GetModuleBaseName pfnGetModuleBaseName
#endif

#ifdef DEV_CPP
typedef int (WINAPI *PFNINT_PSAPI_EP) (DWORD*, DWORD, DWORD*);
PFNINT_PSAPI_EP pfnEnumProcesses=NULL;
typedef int (WINAPI *PFNINT_PSAPI_EPM) (HANDLE, HMODULE*, DWORD, DWORD*);
PFNINT_PSAPI_EPM pfnEnumProcessModules=NULL;
typedef int (WINAPI *PFNINT_PSAPI_GMBN) (HANDLE, HMODULE, LPTSTR, DWORD);
PFNINT_PSAPI_GMBN pfnGetModuleBaseName=NULL;
#endif

HINSTANCE hLibrary=NULL;
HANDLE PrintProcessNameAndID( DWORD processID ,TCHAR ProcessName[30])
{
    TCHAR szProcessName[MAX_PATH] = TEXT("<unknown>");

    // Get a handle to the process.

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

    // Get the process name.

    if (NULL != hProcess )
    {
        HMODULE hMod;
        DWORD cbNeeded;

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

    // Print the process name and identifier.

    if(lstrcmp( szProcessName,ProcessName)==0)
    {
        return  hProcess ;
         CloseHandle( hProcess );
    }
    return 0;
}

INT main( )
{
      #ifdef DEV_CPP
    hLibrary=LoadLibrary(TEXT("psapi.dll"));
    if(hLibrary==NULL)
	{
		MessageBox(NULL,TEXT("Error when loading DLL"),TEXT("Msg"),MB_ICONERROR);
		return 0;
	}
	
    EnumProcesses = (PFNINT_PSAPI_EP) GetProcAddress (hLibrary, "EnumProcesses");
    EnumProcessModules = (PFNINT_PSAPI_EPM) GetProcAddress (hLibrary, "EnumProcessModules");
#ifndef UNICODE
    GetModuleBaseName = (PFNINT_PSAPI_GMBN) GetProcAddress (hLibrary, "GetModuleBaseNameA");
#else
    GetModuleBaseName = (PFNINT_PSAPI_GMBN) GetProcAddress (hLibrary, "GetModuleBaseNameW");
#endif
    if((EnumProcesses==NULL)||(EnumProcessModules==NULL)||(GetModuleBaseName==NULL))
	{
		MessageBox(NULL,TEXT("Error when loading function"),TEXT("Msg"),MB_ICONERROR);
		return 0;
	}
#endif
///////////////////////////
    // Get the list of process identifiers.
    TCHAR ProcessName[30];
    lstrcpy(ProcessName,L"alg.exe");

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

    if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )
        return 0;

    // Calculate how many process identifiers were returned.

    cProcesses = cbNeeded / sizeof(DWORD);

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

    HANDLE handle;
    for ( i = 0; i < cProcesses; i++ )
    {
        handle=PrintProcessNameAndID( aProcesses[i],ProcessName ) ;
        if( aProcesses[i] != 0&& handle !=0)
            _tprintf( TEXT("\n&#37;d"),handle);
    }
	
#ifdef DEV_CPP
    FreeLibrary(hLibrary);
#endif
	system("pause");
    return 0;
}