CreateToolhelp32Snapshot metodu

Giriş
Process'leri dolaşabilmeyi sağlar.
1. CreateToolhelp32Snapshot() ile handle açılır
2. Process32First() ile okuma yapılır
3. Process32Next() ile döngü içinde okuma yapılır

Örnek
Şöyle yaparız.

DWORD get_process_id_by_process_name(const char* process_name_){
  PROCESSENTRY32 process_entry = { sizeof(PROCESSENTRY32) };
  HANDLE processes_snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);

  // loop through all process to find one that matches the process_name_
  if (Process32First(processes_snapshot, &process_entry)){
    do{
      if (strcmp(process_entry.szExeFile, process_name_) == 0){
        CloseHandle(processes_snapshot);
        return process_entry.th32ProcessID;
      }
    } while (Process32Next(processes_snapshot, &process_entry));
  }

  CloseHandle(processes_snapshot);
  return NULL;
}

Örnek
Şöyle yaparız

HANDLE hSnapshot;

PROCESSENTRY32  hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
proc32.dwSize = sizeof(PROCESSENTRY32);

if(Process32First(hSnapshot, &proc32))
{
  cout << proc32.szExeFile << endl;
  while(Process32Next(hSnapshot, &proc32))
     cout << proc32.szExeFile << endl;
}

FindWindow metodu

Örnek
Şöyle yaparız.

HWND hwnd = FindWindowA(NULL, "C:\\Example\\App.exe");

Örnek
Şöyle yaparız.

DWORD get_process_id_by_window_title(const char* window_title_){
  // get a handle to window using the window name
  HWND window_handle = FindWindow(NULL, window_title_);
  if (window_handle == NULL){
    return NULL;
  }

  // return the process id of the window handle we found
  DWORD process_id;
  GetWindowThreadProcessId(window_handle, &process_id);
  return process_id;
}

getnameinfo metodu

Örnek
Şöyle yaparız.

struct sockaddr_in saGNI;
char servInfo[NI_MAXSERV];

saGNI.sin_family = AF_INET;
saGNI.sin_addr.s_addr = inet_addr("10.80.101.162");
saGNI.sin_port = htons(64);

char host[512]; // <-- information to obtain
getnameinfo((struct sockaddr *) &saGNI, sizeof(struct sockaddr),
 host, NI_MAXHOST, servInfo, NI_MAXSERV, NI_NUMERICSERV);

Örnek
Şöyle yaparız.

std::string computer_name;
computer_name.resize(NI_MAXHOST);
struct sockaddr_in socket_address = ...;
char service_info[NI_MAXSERV] = {};


getnameinfo((struct sockaddr *) &socket_address,
            sizeof(socket_address),
            &computer_name[0],
            NI_MAXHOST, service_info, NI_MAXSERV, NI_NUMERICSERV);

InetPton metodu

Giriş
Socket programlama için kullanılır.

Örnek
Şöyle yaparız.

const std::string ip_address = ...;
struct sockaddr_in socket_address;
socket_address.sin_family = AF_INET;
const auto result = InetPtonA(AF_INET, &ip_address[0], &socket_address.sin_addr.s_addr);

WSAStartup metodu

Giriş
Socket programlama için kullanılır.

Örnek
Şöyle yaparız.

WSADATA wsa_data;
WSAStartup(MAKEWORD(2, 2), &wsa_data);