Get Process ID by Name

 

DWORD CChatMessageDlg::GetProcessId(LPCTSTR pszProcessName) ... {    BOOL bFound = FALSE;    DWORD aProcesses [1024], cbNeeded, cProcesses;    unsigned int i;            // Enumerate all processes    if (!EnumProcesses(aProcesses, sizeof(aProcesses), &cbNeeded))        return FALSE;    // Calculate how many process identifiers were returned.    cProcesses = cbNeeded / sizeof(DWORD);    TCHAR szEXEName[MAX_PATH] = ...{0};    // Loop through all process to find the one that matches    // the one we are looking for    for (i = 0; i < cProcesses; i++)    ...{        // Get a handle to the process        HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION |                          PROCESS_VM_READ, FALSE, aProcesses[i]);            // Get the process name        if (NULL != hProcess)        ...{            HMODULE hMod;            DWORD cbNeeded;                    if(EnumProcessModules(hProcess, &hMod,                                   sizeof(hMod), &cbNeeded))            ...{                //Get the name of the exe file                GetModuleBaseName(hProcess, hMod, szEXEName,                     sizeof(szEXEName)/sizeof(TCHAR));                if (_tcsicmp(szEXEName, pszProcessName) == 0)                ...{                    bFound = TRUE;                    CloseHandle(hProcess);                    break;                }            }            CloseHandle(hProcess);        }        }    return bFound ? aProcesses[i] : 0;}

 

Note:

Header

Declared in Psapi.h.

Library

Link to Psapi.lib.