Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
MSMQ: how to open a queue
Winsock: sending email messages (SMTP, port 25)
How to change display settings: screen resolution, screen refresh rate
Using Video Capture: displaying on FoxPro form frames and previewing video obtained from a digital camera
Adding and deleting User Accounts
How to copy the image of a form to the Clipboard using Bitmap API functions
Retrieving the interface–to–IP address mapping table
How to make a VFP form fading out when released (GDI+ version)
How to draw custom Window Caption on FoxPro form
Custom GDI+ class
Displaying the associated icons and descriptions for files and folders
Subclassing CommandButton control to create BackColor property
How to display Windows On-Screen Keyboard
Monitoring changes in a directory
Obtaining the bounding rectangle for the specified device context
Using WM_COPYDATA for interprocess communication (VFP9)
Winsock: retrieving the standard host name and IP address for the local machine
Custom FTP Class for Visual FoxPro application
Enumerating raw input devices attached to the system (keyboard, mouse, human interface device)
How to download this reference`s archive through WinInet functions using InternetOpenUrl
Monitoring changes occurring within a directory
Custom HttpRequest class (WinHTTP)
How to detect if additional monitor is connected and active
Class for sound recording
A client for testing non-blocking Winsock server

User rating: 0/10 (0 votes)
Rate this code sample:
  • ~
More code examples    Listed functions    Add comment     W32 Constants      Translate this page Printer friendly version of this code sample
Versions:
click to open
Before you begin:

This code is a client part created for testing the non-blocking Winsock server sample code.

First run server code on any computer on your network. Enter acting server IP and port values on the client form.

Test button sends a short standard message.
Send button sends a message entered in the text box.
Transmit button sends a selected file.

All sent messages are stored in a memo column of a cursor on the server side.

* * *
VB.Net version of this code works in a similar way. It can send text strings and files to the non-blocking Winsock server. So you may use both codes, FoxPro and VB.Net, for testing the server.

See also:
  • How to create non-blocking Winsock server
  • Using the NetMessageBufferSend to send messages on the network
  • Using mailslots to send messages on the network
  • Peer-to-peer LAN messenger built with Mailslot API functions
  • Using WM_COPYDATA for interprocess communication
  •  
      Members area. Log in to view this example.
     
      User name:
      Password:
     
     
      Forgot your password?
     
      Sign up for
    the Membership
     
     


    User rating: 0/10 (0 votes)
    Rate this code sample:
    • ~
    5368 bytes  
    Created: 2003-07-07 23:30:45  
    Modified: 2011-12-10 09:20:22  
    Visits in 7 days: 16  
    Listed functions:
    closesocket
    htons
    inet_addr
    send
    socket
    WSACleanup
    WSAStartup
    Printer friendly API declarations
    My comment:
    After establishing a connection and sending messages the client program usually keeps several local ports in the TIME_WAIT state for a short time.

    List of local ports in use can be obtained through the system NETSTAT command, or use example in this reference Displaying all TCP connections for the local system to get the list.

    Working with the NETSTAT Command.

    And there is a link with some TIME_WAIT related info on Experts-Exchange site.

    #kwd: sln_winsock.
    Word Index links for this example:
    Translate this page:
      Spanish    Portuguese    German    French    Italian  
    FreeTranslation.com offers instant, free translations of text or web pages.
    User Contributed Notes:
    Rob | 2006-03-19 11:38:12
    does running this client portion ties up this copy of VFP from doing other tasks until the message is received?
    A.M. | 2006-03-19 16:40:36
    Server part: yes. You may try asynch calls, though anyway the state has to be checked by timer. There is no way to start a separate thread in pure VFP code.
    ezequiel@professional-soft.com | 2006-08-01 06:58:29
    What is it necessary to do to receive information of response of the server?

    Copyright © 2001-2015 News2News, Inc. Before reproducing or distributing any data from this site please ask for an approval from its owner. Unless otherwise specified, this page is for your personal and non-commercial use. The information on this page is presented AS IS, meaning that you may use it at your own risk. Microsoft Visual FoxPro and Windows are trade marks of Microsoft Corp. All other trademarks are the property of their respective owners. 

    Privacy policy
    Credits: PHP (4.4.9), an HTML-embedded scripting language, MySQL (5.5.43), the Open Source standard SQL database, AceHTML Freeware Version 4, freeware HTML Editor of choice.   Hosted by Korax Online Inc.
    Google
    Advertise here!