C / C++ / MFC

Herboren wrote:

cout << "The length of " << str << " is: " << strlen( str.c_str()) << endl;

cout << "The length of " << str << " is: " << str.length() << endl;

Herboren wrote:

I need to create an array based on the amount of symbols in the str, so instead of pre.creating the 'aArray[5]' im using the strlen(str.c_str()) to count the number of symbols in the str from the users input.

int *nArray = new int[what_number_goes_here?];
...
delete [] nArray;

daniel33433 wrote:

...when it has completed, how do I bring up the second dialog box?

 nRet=dlg.DoModal();

   // Handle the return value from DoModal
   switch ( nRet )
   {
   case IDOK:
   {
    STARTUPINFO StartupInfo;
    memset(&StartupInfo, 0, sizeof(STARTUPINFO));
    StartupInfo.cb = sizeof(STARTUPINFO);  
//    StartupInfo.lpReserved = 0;  
//    StartupInfo.lpDesktop = 0;  
//    StartupInfo.lpTitle = 0;  
//    StartupInfo.dwX = 0;  
//    StartupInfo.dwY = 0;  
//    StartupInfo.dwXSize = 100;  
//    StartupInfo.dwYSize = 100;  
//    StartupInfo.dwXCountChars = 0;  
//    StartupInfo.dwYCountChars = 0;  
//    StartupInfo.dwFillAttribute = 0;  
    StartupInfo.dwFlags = STARTF_USESHOWWINDOW;  
    StartupInfo.wShowWindow = SW_SHOWDEFAULT;  
//    StartupInfo.cbReserved2;  
//    StartupInfo.lpReserved2;  
//    StartupInfo.hStdInput;  
//    StartupInfo.hStdOutput;  
//    StartupInfo.hStdError;

    PROCESS_INFORMATION ProcessInfo;

    if (::CreateProcess(_T("C:\\WINDOWS\\notepad.exe"),    //  LPCTSTR lpApplicationName,
                            NULL,                    //  LPTSTR lpCommandLine,
                            0,                        //  LPSECURITY_ATTRIBUTES lpProcessAttributes,
                            0,                        //  LPSECURITY_ATTRIBUTES lpThreadAttributes,
                            FALSE,                    //  BOOL bInheritHandles,
                            NORMAL_PRIORITY_CLASS,    //  DWORD dwCreationFlags,
                            0,                        //  LPVOID lpEnvironment,
                            0,                        //  LPCTSTR lpCurrentDirectory,
                            &StartupInfo,            //  LPSTARTUPINFO lpStartupInfo,
                            &;ProcessInfo            //  LPPROCESS_INFORMATION lpProcessInformation
                            ))
    {
        // Disable the main application window so user can't do anything
        EnableWindow(FALSE);

        // Wait for the spawned process to terminate
        while (true)
        {
            DWORD dwWaitRet = ::MsgWaitForMultipleObjects(1, &;ProcessInfo.hProcess, FALSE, INFINITE, QS_ALLEVENTS);

            if (WAIT_OBJECT_0 == dwWaitRet)
            {
                // Spawned app has terminated

                break;
            }
            else if (WAIT_OBJECT_0 + 1 == dwWaitRet)
            {
                // Queued window message(s) available

                // Dispatch all queued messages
                MSG msg;
                while (::PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) 
                    AfxGetApp()->;PumpMessage(); 
            }
        }

        // Cleanup
        ::CloseHandle(ProcessInfo.hProcess);  
        ::CloseHandle(ProcessInfo.hThread);  

        // Re-enable the main application window
        EnableWindow(TRUE);
    }
   }
}

Mark Salsbery
Microsoft MVP - Visual C++

Cris wrote:

The error is WSAEINVAL (10022) on sendto function...

<br />
SOCKET m_maSocketOut;<br />
struct sockaddr_in m_SockAddrOut;<br />
unsigned long m_lInet;<br />
.<br />
.<br />
<br />
void init(CString strServer)<br />
{<br />
unsigned long lInet=0;<br />
<br />
memset(&m_SockAddrOut, 0, sizeof(m_SockAddrOut));<br />
<br />
m_maSocketOut = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP); <br />
m_SockAddrOut.sin_family = AF_INET;<br />
m_SockAddrOut.sin_port = htons(port);<br />
<br />
struct hostent FAR* hp = gethostbyname((char FAR *) (const char *) strServer);<br />
<br />
if (hp == NULL)<br />
{<br />
   lInet = inet_addr((const char * ) strServer); <br />
   if (lInet != INADDR_NONE)	<br />
   {<br />
      validIP = TRUE;		<br />
      byAddress = TRUE;		<br />
   }<br />
}<br />
else<br />
   validIP = TRUE;<br />
	<br />
if (validIP)<br />
{<br />
   if (byAddress)<br />
   {<br />
      m_SockAddrOut.sin_addr.s_addr = lInet;<br />
      m_lInet = lInet;<br />
   }<br />
   else<br />
   {<br />
      m_SockAddrOut.sin_addr.s_addr = *((unsigned long far *) hp->h_addr);<br />
      m_lInet = *((unsigned long far *) hp->h_addr);<br />
   }<br />
<br />
   if (m_maSocketOut != NULL)<br />
   {<br />
      bind(m_maSocketOut, (SOCKADDR*)& m_SockAddrOut, sizeof(m_SockAddrOut));<br />
      WSAAsyncSelect(m_maSocketOut, hWnd, WM_EXTERNA, FD_READ | FD_CLOSE);<br />
   }<br />
}<br />
}<br />
<br />
void sendData(char szData[], int len)<br />
{<br />
   int result = sendto(m_maSocketOut, (char FAR *) &szData, len, <br />
		    NULL, (PSOCKADDR) &m_SockAddrOut, sizeof(m_SockAddrOut));<br />
   m_SockAddrOut.sin_addr.s_addr = INADDR_ANY;<br />
<br />
   if (result < 0)<br />
   {<br />
      int erroCode = WSAGetLastError();<br />
      //erroCode = 10022 in Windows Vista!!<br />
   }<br />
}<br />