Завершение родительского процесса из дочернего

#include<windows.h>
#include<conio.h>
 
int main(int argc, char *argv[])
{
char c;
HANDLE hThread;
 
hThread =  (HANDLE)atoi(argv[1]);
 
while (true)
  {
   cputs("Input 't' to terminate the thread: ");
   c =_getch();
   if (c=='t')
     {
      cputs("t\n");
      break;
     }
    TerminateThread(hThread,0);
    CloseHandle(hThread);
    cputs("Pres any key to exit.\n");
    _getch();
    return 0;
  }
}

#include<windows.h>
#include<conio.h>
volatile int count;
 
void thread()
{
for(;;)
{
count++;
Sleep(500);
cprintf("count= %d\n",count);
}
}
 
int main()
{
char lpszComLine[80];
STARTUPINFO si;
PROCESS_INFORMATION pi;
SECURITY_ATTRIBUTES sa;
 
HANDLE hThread;
DWORD IDThread;
 
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = True;
 
hThread = CreateThread(&sa,0,(LPTHREAD_START_ROUTINE)thread, NULL, 0, &IDThread);
 
if(hThread == NULL)
return GetLastError();
 
ZeroMemory(&si,sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
 
wsprintf(lpszComLine,"c:\\CP.exe %d",(int)hThread);
 
if(!CreateProcess(
NULL,
lpszComLine,
NULL,NULL,
TRUE,
CREATE_NEW_CONSOLE,
NULL,
NULL,
&si,
&pi))
{
cputs("The new process is't created");
_getch();
return GetLastError();
}
 
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
 
WaitForSingleObject(hThread,INFINITE);
        cputs("Press any key to exit");
        _getch();
CloseHandle(hThread);
return 0;
 
 
}

#include<windows.h>
#include<conio.h>
volatile int count;
 
void thread()
{
for(;;)
{
count++;
Sleep(500);
cprintf("count= %d\n",count);
}
}
 
int main()
{
char lpszComLine[80];
char lpszHandle[20];
STARTUPINFO si;
PROCESS_INFORMATION pi;
 
HANDLE hThread, hInheritThread;
DWORD IDThread;
 
 
 
hThread = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)thread, NULL, 0, &IDThread);
wsprintf(lpszComLine,"c:\\CP.exe %d",(int)hThread);
 
if(!DuplicateHandle(GetCurrentProcess(),
hThread,
GetCurrentProcess(),&hInheritThread,
 0,TRUE,DUPLICATE_SAME_ACCESS))
 
ZeroMemory(&si,sizeof(STARTUPINFO));
 si.cb = sizeof(STARTUPINFO);
 itoa((int)hInheritThread,lpszHandle,10);
 strcat(lpszComLine,lpszHandle);
 
if(!CreateProcess(
NULL,
lpszComLine,
NULL,NULL,
TRUE,
CREATE_NEW_CONSOLE,
NULL,
NULL,
&si,
&pi))
 
{
cputs("The new process is't created");
_getch();
return GetLastError();
}
 
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
_getch();
 
CloseHandle(hThread);
return 0;
 
}

#pragma argsused
#include<windows.h>
#include<conio.h>
 
int main(int argc, char *argv[])
{
char c;
HANDLE hThread;
 
hThread =  (HANDLE)atoi(argv[1]);
 
 
while (true)
  {
   cputs("Input 't' to terminate the thread: ");
   c =_getch();
 
   if (c=='t')
 
     {
      cputs("t\n");
      TerminateThread(hThread,0);
      _getch();
      break;
     }
 
    TerminateThread(hThread,0);
    CloseHandle(hThread);
    cputs("Pres any key to exit.\n");
    _getch();
 
  }
}