Windows Threading Techniques in C++

Threading can be created by the following 3 methods 

1- _beginthread

2- _beginthreadex

3- createthread

The following examples  were written using Borland C++ 5.02

_beginthread(Function Name , Stack Size , Parameter To Pass)

#include <process.h>

void ThreadProc(void *param);

int main()

{

  int n, i;

  int val = 0;

  HANDLE handle;

  printf("Enter the number of threads : ");

  scanf("%d",&n);

  for(i=0;i<n;i++)

  {

  val = i+1;

  handle = (HANDLE) _beginthread( ThreadProc,0,&val);

  WaitForSingleObject(handle,INFINITE);

  }

  cin.get();

}

void ThreadProc(void *param)

{

  int h=*((int*)param);

  printf("%d Thread is Running!\n",h);

  _endthread();

} 

 

Capturing the Error Code of A Thread GetExitCodeThread

#include <windows.h>

#include <stdio.h>

#include <process.h>

void Thread1(void *p);

int main()

{

    HANDLE  Thread;

    LPDWORD lpExitCode; 

    int code;

    Thread = (HANDLE) _beginthread(Thread1,0,0);

    Sleep(4000);

    GetExitCodeThread(Thread,lpExitCode);

    cout <<  "Start---"<<  lpExitCode <<"----End" ;

    code = int(*lpExitCode);

   

     if (code == 259)

     {

     cout << "Thread has endded";

     }

    cout << "This should show up" ;

    CloseHandle(Thread);

}

void Thread1(void *p)

{

      int i = 0;

      while(1)

      {

               printf("%u ", i);

               i = rand();

               Sleep(500);

      }

      cout << "Finished" << "\n";

}