Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Winsock: retrieving the host information corresponding to a network address
Winsock: creating a socket that is bound to a specific service provider
Creating a clipping region from the path selected into the device context of a form
How to register custom Event Log source
Retrieving the interface–to–IP address mapping table
System Image List Viewer
Using the heap of the calling process to allocate memory blocks
OS version and revision
Displaying OS Memory Status
Loading a string resource from an executable file
Starting an external application in VFP using WinExec
Winsock: how to retrieve a service information corresponding to a port
Validating URLs using moniker functions
Winsock: how to retrieve the protocol information corresponding to a protocol name
Obtaining heap handles and enumerating memory blocks for the current VFP session (WinNT only)
How to convert a bitmap file to monochrome format (1 bpp)
How to write and read Window Properties for the specified window
Obtaining information about all user accounts on a server (WinNT only)
Drawing a rectangle using Windows regular edges and borders
Retrieving IP statistics for the computer
Winsock: initializing the service in the VFP application
Printf-style formatted text output in VFP
Displaying all TCP connections for the local system
Validating the heap of the calling process
Winsock: connecting to a news server (NNTP, port 119)

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More code examples    Listed functions    Add comment     W32 Constants      Translate this page Printer friendly version of this code sample
Before you begin:
This sample shows how to retrieve a list of newsgroups stored on a news server. The base class contains practically all methods to extend this code for reading and posting messages to a newsgroup.



The code connects to NNTP server news.microsoft.com. Any other NNTP server can be used.
 
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9824 bytes  
Created: 2003-02-23 10:42:07  
Modified: 2011-12-10 09:20:22  
Visits in 7 days: 112  
Listed functions:
closesocket
gethostbyname
GlobalAlloc
GlobalFree
GlobalSize
htons
inet_addr
inet_ntoa
recv
send
socket
WSACleanup
WSACloseEvent
WSAConnect
WSACreateEvent
WSAEventSelect
WSAGetLastError
WSARecv
WSASend
WSAStartup
WSAWaitForMultipleEvents
Printer friendly API declarations
My comment:
Some useful links:
  • RFC977. Network News Transfer Protocol
  • Network News Transfer Protocol on freesoft.org
  • How to use Winsock Control in order to build Internet applications


    #kwd: sln_winsock.
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    User Contributed Notes:
    johnk@spectrumdata.com | 2006-05-15 15:39:40
    This example does not work. WS_Connect cannot find entry point in dll
    A.M. | 2006-05-15 16:11:30
    Replace line
    nResult = ws_connect(hSocket, @cBuffer, Len(cBuffer))

    with
    DECLARE INTEGER WSAConnect IN ws2_32;
        INTEGER s, STRING @sname, INTEGER namelen,;
        INTEGER lpCallerData, INTEGER lpCalleeData,;
        INTEGER lpSQOS, INTEGER lpGQOS

    nResult = WSAConnect(hSocket, @cBuffer, Len(cBuffer), 0, 0, 0, 0)

    It may work better.

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