Need help! Check for process is running or not ...

[isaisa]

Hi,
I need to find out if the process is running or not. I require to get this information with help of the name of the process. How do i do it using 'C' on windows ????

Thanks in advance .

Sanjay

 

[ArkM]

See MSDN, Enumerating all processes article. Use EnumProcesses - EnumProcessModules - GetModuleBaseName calls chain (psapi.h - psapi.lib from Windows SDK, or psapi.dll) - then select the proper process from the list.
See example source from this article:

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] );
}

Be careful, there are many processes (My WS runs 152 now. Don't forget: OS may reuse pids...