C / C++ / MFC

int MailIt (char *mailserver, char *emailto, char *emailfrom,char *emailsubject, char *emailmessage)
{
    SOCKET sockfd;
    WSADATA wsaData;
 
    int bytes_sent; /* Sock FD */
    int err;
    struct hostent *host; /* info from gethostbyname */
    struct sockaddr_in dest_addr; /* Host Address */
    char line[100000];
 
    char Rec_Buf[301];
    if (WSAStartup(0x202,&wsaData) == SOCKET_ERROR)
    {
        WSACleanup();
        return -1;
    }
 
    if ( (host=gethostbyname(mailserver)) == NULL)
    {
        perror("gethostbyname");
        return 1;
    }
 
    memset(&dest_addr,0,sizeof(dest_addr));
    memcpy(&(dest_addr.sin_addr),host->h_addr,host->h_length);
 
    /* Prepare dest_addr */
    dest_addr.sin_family= host->h_addrtype; /* AF_INET from gethostbyname */
    dest_addr.sin_port= htons(25); /* PORT defined above */
 
    /* Get socket */
    if ((sockfd=socket(AF_INET,SOCK_STREAM,0)) < 0)
    {
        perror("socket");
        return 1;
    }
 
    /* Connect !*/
    if (connect(sockfd, (struct sockaddr *)&dest_addr,sizeof(dest_addr)) == -1)
    {
        perror("connect");
        return 1;
    }
 
    strcpy(line,"HELO me.somepalace.com\r\n");
    bytes_sent=send(sockfd,line,strlen(line),0);
    err=recv(sockfd,Rec_Buf,sizeof(Rec_Buf),0);
    Rec_Buf[err] = '\0';
 
    strcpy(line,"MAIL FROM: <");
    strncat(line,emailfrom,strlen(emailfrom));
    strncat(line,">\r\n",3);
    bytes_sent=send(sockfd,line,strlen(line),0);
    err=recv(sockfd,Rec_Buf,sizeof(Rec_Buf),0);
    Rec_Buf[err] = '\0';
 
    strcpy(line,"RCPT TO: <");
    strncat(line,emailto,strlen(emailto));
    strncat(line,">\r\n",3);
    bytes_sent=send(sockfd,line,strlen(line),0);
    err=recv(sockfd,Rec_Buf,sizeof(Rec_Buf),0);
    Rec_Buf[err] = '\0';
 
    strcpy(line,"DATA\r\n");
    bytes_sent=send(sockfd,line,strlen(line),0);
    err=recv(sockfd,Rec_Buf,sizeof(Rec_Buf),0);
    Rec_Buf[err] = '\0';
 
    strcpy(line,"To: ");
    strcat(line,emailto);
    strcat(line,"\r\n");
    strcat(line,"From: ");
    strcat(line,emailfrom);
    strcat(line,"\r\n");
    strcat(line,"Subject: ");
    strcat(line,emailsubject);
    strcat(line,"\r\n\r\n");
    strcat(line,emailmessage);
    strcat(line,"\r\n.\r\n");
    bytes_sent=send(sockfd,line,strlen(line),0);
    err=recv(sockfd,Rec_Buf,sizeof(Rec_Buf),0);
    Rec_Buf[err] = '\0';
 
    strcpy(line,"QUIT\r\n");
    bytes_sent=send(sockfd,line,strlen(line),0);
    err=recv(sockfd,Rec_Buf,sizeof(Rec_Buf),0);
    Rec_Buf[err] = '\0';
 
    closesocket(sockfd);
    WSACleanup();
 
    return 0;
}

LateNightsInNewry wrote:

Nope, it appears to POST these messages

while (GetQueueStatus(QS_PAINT))
{
   // Force any waiting WM_PAINT messages to be processed before continuing
   AfxGetApp()->PumpMessage();
}

LateNightsInNewry wrote:

The ShowWindow(SW_HIDE) causes the Entire App to disapear off the horizon

Mark Salsbery wrote:

DoSomethingVerryLengthy() is in OnInitDialog()?

Mark Salsbery wrote:

Of course it does. This is what you wanted, right? If you hide the main window then all the
children get hidden too.

LateNightsInNewry wrote:

Sorry for the length of this, but I hope it explains what I want to achieve

// Typical MFC message pump (global function or add to app class)
void _PumpWaitingMessages()
{
   MSG msg;
   while ( ::PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ) ) 
   { 
      if ( !AfxGetApp()->PumpMessage( ) ) 
      { 
         ::PostQuitMessage(0); 
         break; 
      } 
   }
}
 
...
 
CStartTransactionDlg::OnFindCustomer()
{
   ShowWindow(SW_HIDE);// Hides CStartTransactionDlg
 
   pMainWnd->UpdateWindow(); // Refreshes exposed part of background window
 
   _PumpWaitingMessages(); 
 
   // And Now, on a Full Background:-
   CCustomerAccountDlg Dlg(pCurrentCustomer,FLAG_SHOWACCOUNT|FLAG_ALLOWPAYMENT);
   Dlg.DoModal();
 
   pMainWnd->UpdateWindow();  // Refreshes exposed part of background window
 
   ShowWindow(SW_SHOWNORMAL);// Show CStartTransactionDlg 
}

LateNightsInNewry wrote:

I am NOT trying to paint a Dialog in the middle of creation. Rather,I want to keep an Entirely Unrelated Window on the heap which acts as visual background, painted on the screen at all times. Unfortunately it gets clobbered, I try to repaint before starting something lengthy, just does not happen.