Thread: testing for process

i seem to be having a problem with a function written for testing is a process is open

my process opener is this

Code:

bool C_terragen::launchTerragen()
{
     string TMP_fullPath = configFile.SZ_config_tgpath;
     TMP_fullPath += "terragen.exe";

     if(CreateProcess(TMP_fullPath.c_str(),NULL,NULL,NULL,0,NORMAL_PRIORITY_CLASS,NULL,NULL,&si,&pi))
     {
     ttStartTime = time(NULL);
     cout<<"terragen started"<<endl;
     }
     else
     {
     cout<<"ERROR: unable to lauch terragen";
     }
}

that is working (it prints out terragen started, and th app does start)

my process killer is this

Code:

bool C_terragen::killTerragen()
{
     if(!TerminateProcess(pi.hProcess, 0))
     {
          return(0);
     }
     else
     {
          if(isRunning())
          {
                return(0);
          }
          else
          {
                return(1);
          }
     }
}

that WAS working untill i added the isRunning function to double check. which leads me to the function that is causing the problem...

Code:

bool C_terragen::isRunning()
{
     if (WaitForSingleObject(pi.hProcess, 1000) == WAIT_TIMEOUT)
     {
          CloseHandle(pi.hThread);
          CloseHandle(pi.hProcess);
          return(0);
     }
     else
     {
          return(1);
     }
}

this function always returns false. at first i thought it might be because it was called faster than the process starting up, but even pausing my program and resuming it when i could see the app fully loaded still returned false

pi is (suprise suprise) a PROCESS_INFORMATION structure

BTW. the application that is opened is susceptioble to quiting automaticly

if you have read down to here, then a massive thank you already, if you can give me an answer, that would be just grand