如何在CreateProcess(...)后，在等待很久后，决定提前结束新建的进程？(比如按ESC键让它结束)

Question

if( CreateProcess(...))
  {
    DWORD ret= WaitForSingleObject(lpProcessInfo->hProcess, 3);
    if(ret!=WAIT_FAILED)
      return 1;
  }
  如何理解?如何做?谢谢!

Answer 1

更正：
DWORD ret= WaitForSingleObject(lpProcessInfo->hProcess, INFINITE);

Answer 2

if( CreateProcess(...))
  {
    m_bCancel = FALSE;
    DWORD ret;
    while(!m_bCancel)
    {
       ret = WaitForSingleObject(lpProcessInfo->hProcess, 100);
       if(ret != WAIT_TIMEOUT) break;
       DoEvents();
    }
    if(m_bCancel)
    {
        TerminateProcess(lpProcessInfo->hProcess, 0);
    }
}void OnCancelButton()
{
   m_bCancel = TRUE;
}
void DoEvents()
{
MSG msg;
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
    {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return;
}